Metallurgical and Materials Engineering

Prof. Gour Gopal Roy

Professor

ggroy@metal.iitkgp.ac.in

+91-3222-283276

Research Area

Additive Manufacturing Computational Materials Science Extractive Metallurgy & Materials Recycling

Research

Research on iron & Steel Processing: Alternative routes of iron making using RHF: One of the major research interests of the author is towards selecting operating parameters based on rigorous experiments in laboratory scale RHF and process models and subsequently scale it up to pilot scale. The author has demonstrated the significant effect of the shapes of pre-fabricated iron ore coal composite pellet on the iron nugget formation at RHF. Attempts is being made to enhance the heat and mass conductance of the thicker bed by tailoring size, shape distribution of pellets, additives etc. A MoS sponsored SDF project of worth 54 lakhks has been completed and recently and MHRD-MoS-ASP sponsored UAY project (worth 741 lakhs) is ongoing on the pilot scale RHF setup at ASP, Durgapur, SAIL for processing Iron ore and coal fines of Indian origin.

Another prime area of research of the author is on reduction and control of NMI in steel. Rigorous characterization of NMI in steel, and its control by controling operating parameters in upstream processing of steel are aimed in this project, which has been formulated in collaboration between IIT Kgp-HEC-DHI as a part of CoE on advanced manufacturing at IIT Kharagpur. The author has also collaboration with Vizag steel, and WMG, UK towards inclusion control in steel.

The author is also involved seriously in Welding Research. The author has been instrumental as one of the PIs in developing an indigenous

Electron Beam Welding (EBW) setup at IIT Kharagpur in collaboration with BARC & BRNS. The author has worked intensely with the research group at Pennsylvania State University, to develop an indigenous CFD code for fusion welding for steels. The author is also working with WMG, UK towards understanding evolution of welding defects during EBW.

Project Areas

Computational Fluid Dynamics
Electron beam welding
Sponge iron technology by RHF
Extractive metallurgy
NMI control in steel

Publication

Year	Category	Title
2020	Journal	Das, Debasish; Pal, Abhishek Rudra; Das, Amit Kumar; Pratihar, Dilip Kumar; Roy, Gour Gopal; \| Nature-inspired optimization algorithm-tuned feed-forward and recurrent neural networks using CFD-based phenomenological model-generated data to model the EBW process \| Arabian Journal for Science and Engineering Vol. 45 No. 4 Page 2779-2797 \| Springer Berlin Heidelberg
2020	Journal	Nayak, Lord Jaykishan; Roy, Gour Gopal; \| Thermocouple temperature measurement during high speed electron beam welding of SS 304 \| Optik Vol. 201 No. Page 163538 \| Urban & Fischer
2020	Journal	Das, Debasish; Pratihar, Dilip Kumar; Roy, Gour Gopal; \| Effects of space charge on weld geometry and cooling rate during electron beam welding of stainless steel \| Optik Vol. 206 No. Page 163722 \| Urban & Fischer
2020	Journal	Dasgupta, Soumyadeep; Saleem, Sooraj; Srirangam, Prakash; Auinger, Michael; Roy, Gour G; \| A computational study on the reduction behavior of iron ore/carbon composite pellets in both single and multi-layer bed rotary hearth furnace \| Metallurgical and Materials Transactions B Vol. 51 No. 2 Page 818-826 \| Springer US
2020	Journal	Dinda, Soumitra Kumar; Srirangam, Prakash; Roy, Gour Gopal; \| Defects Comparison Between Single-and Double-Sided Electron Beam Welded Dissimilar DP600 Steel to 5754 Al Alloy Joints: X-Ray Tomography Study \| TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings Vol. No. Page 1107-1116 \| Springer, Cham
2020	Journal	Saleem, Sooraj; Mishra, Srinibash; Roy, Gour Gopal; \| A simulation study of reduction kinetics for sponge iron production in a rotary hearth furnace \| Canadian Metallurgical Quarterly Vol. 59 No. 2 Page 180-188 \| Taylor & Francis
2020	Journal	Das, Debasish; Pratihar, Dilip Kumar; Roy, Gour Gopal; \| Establishing a Correlation Between Residual Stress and Natural Frequency of Vibration for Electron Beam Butt Weld of AISI 304 Stainless Steel \| ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING Vol. No. Page \| SPRINGER HEIDELBERG TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
2020	Journal	Saleem, Sooraj; Roy, Gour Gopal; \| Influence of burner nozzle configuration, and inlet gas composition on combustion, gas dynamics, temperature and concentration profile in a rotary hearth furnace \| Ironmaking & Steelmaking Vol. No. Page 43843 \| Taylor & Francis
2020	Journal	Dinda, Soumitra Kumar; Kockelmann, Winfried; Roy, Gour Gopal; Srirangam, Prakash; \| Neutron diffraction bulk texture study with impact property correlation of electron beam welded dissimilar Fe-7% Al alloy to steel joints \| The International Journal of Advanced Manufacturing Technology Vol. No. Page 44105 \| Springer London
2020	Journal	Dinda, Soumitra Kumar; Kar, Jyotirmaya; Roy, Gour Gopal; Kockelmann, Winfried; Srirangam, Prakash; \| Texture mapping in electron beam welded dissimilar copper-stainless steel joints by neutron diffraction \| Vacuum Vol. No. Page 109668 \| Pergamon
2020	Journal	Das, Debasish; Das, Amit Kr; Pratihar, DK; Roy, GG; \| Prediction of residual stress in electron beam welding of stainless steel from process parameters and natural frequency of vibrations using machine-learning algorithms \| Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Vol. No. Page 954406000000000 \| SAGE Publications Sage UK: London, England
2020	Journal	Nayak, Lord Jaykishan; Roy, Gour Gopal; \| Joining of zircaloy-4 of dissimilar thickness using electron beam welding \| The International Journal of Advanced Manufacturing Technology Vol. No. Page 43848 \| Springer London
2019	Journal	Kumar, Binay; Mishra, Sachin; Rao, MBV; Roy, Gour Gopal; \| Experimental investigation of recovery and efficiency of calcium addition through cored wire in steel melt at Visakhapatnam Steel Plant \| Ironmaking & Steelmaking Vol. 46 No. 5 Page 454-462 \| Taylor & Francis
2019	Journal	Gollapalli, Veerababu; Rao, MB Venkata; Karamched, Phani S; Borra, Chenna Rao; Roy, Gour G; Srirangam, Prakash; \| Modification of oxide inclusions in calcium-treated Al-killed high sulphur steels \| Ironmaking & Steelmaking Vol. 46 No. 7 Page 663-670 \| Taylor & Francis
2019	Journal	Kamaraj, Ashok; Mandal, GK; Roy, GG; \| Control of Slag Carryover from the BOF Vessel During Tapping: BOF Cold Model Studies \| Metallurgical and Materials Transactions B Vol. 50 No. 1 Page 438-458 \| Springer US

Year	Category	Title
2020	Journal	Das, Debasish; Pal, Abhishek Rudra; Das, Amit Kumar; Pratihar, Dilip Kumar; Roy, Gour Gopal; \| Nature-inspired optimization algorithm-tuned feed-forward and recurrent neural networks using CFD-based phenomenological model-generated data to model the EBW process \| Arabian Journal for Science and Engineering Vol. 45 No. 4 Page 2779-2797 \| Springer Berlin Heidelberg
2020	Journal	Nayak, Lord Jaykishan; Roy, Gour Gopal; \| Thermocouple temperature measurement during high speed electron beam welding of SS 304 \| Optik Vol. 201 No. Page 163538 \| Urban & Fischer
2020	Journal	Das, Debasish; Pratihar, Dilip Kumar; Roy, Gour Gopal; \| Effects of space charge on weld geometry and cooling rate during electron beam welding of stainless steel \| Optik Vol. 206 No. Page 163722 \| Urban & Fischer
2020	Journal	Dasgupta, Soumyadeep; Saleem, Sooraj; Srirangam, Prakash; Auinger, Michael; Roy, Gour G; \| A computational study on the reduction behavior of iron ore/carbon composite pellets in both single and multi-layer bed rotary hearth furnace \| Metallurgical and Materials Transactions B Vol. 51 No. 2 Page 818-826 \| Springer US
2020	Journal	Dinda, Soumitra Kumar; Srirangam, Prakash; Roy, Gour Gopal; \| Defects Comparison Between Single-and Double-Sided Electron Beam Welded Dissimilar DP600 Steel to 5754 Al Alloy Joints: X-Ray Tomography Study \| TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings Vol. No. Page 1107-1116 \| Springer, Cham
2020	Journal	Saleem, Sooraj; Mishra, Srinibash; Roy, Gour Gopal; \| A simulation study of reduction kinetics for sponge iron production in a rotary hearth furnace \| Canadian Metallurgical Quarterly Vol. 59 No. 2 Page 180-188 \| Taylor & Francis
2020	Journal	Das, Debasish; Pratihar, Dilip Kumar; Roy, Gour Gopal; \| Establishing a Correlation Between Residual Stress and Natural Frequency of Vibration for Electron Beam Butt Weld of AISI 304 Stainless Steel \| ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING Vol. No. Page \| SPRINGER HEIDELBERG TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
2020	Journal	Saleem, Sooraj; Roy, Gour Gopal; \| Influence of burner nozzle configuration, and inlet gas composition on combustion, gas dynamics, temperature and concentration profile in a rotary hearth furnace \| Ironmaking & Steelmaking Vol. No. Page 43843 \| Taylor & Francis
2020	Journal	Dinda, Soumitra Kumar; Kockelmann, Winfried; Roy, Gour Gopal; Srirangam, Prakash; \| Neutron diffraction bulk texture study with impact property correlation of electron beam welded dissimilar Fe-7% Al alloy to steel joints \| The International Journal of Advanced Manufacturing Technology Vol. No. Page 44105 \| Springer London
2020	Journal	Dinda, Soumitra Kumar; Kar, Jyotirmaya; Roy, Gour Gopal; Kockelmann, Winfried; Srirangam, Prakash; \| Texture mapping in electron beam welded dissimilar copper-stainless steel joints by neutron diffraction \| Vacuum Vol. No. Page 109668 \| Pergamon
2020	Journal	Das, Debasish; Das, Amit Kr; Pratihar, DK; Roy, GG; \| Prediction of residual stress in electron beam welding of stainless steel from process parameters and natural frequency of vibrations using machine-learning algorithms \| Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Vol. No. Page 954406000000000 \| SAGE Publications Sage UK: London, England
2020	Journal	Nayak, Lord Jaykishan; Roy, Gour Gopal; \| Joining of zircaloy-4 of dissimilar thickness using electron beam welding \| The International Journal of Advanced Manufacturing Technology Vol. No. Page 43848 \| Springer London
2019	Journal	Kumar, Binay; Mishra, Sachin; Rao, MBV; Roy, Gour Gopal; \| Experimental investigation of recovery and efficiency of calcium addition through cored wire in steel melt at Visakhapatnam Steel Plant \| Ironmaking & Steelmaking Vol. 46 No. 5 Page 454-462 \| Taylor & Francis
2019	Journal	Gollapalli, Veerababu; Rao, MB Venkata; Karamched, Phani S; Borra, Chenna Rao; Roy, Gour G; Srirangam, Prakash; \| Modification of oxide inclusions in calcium-treated Al-killed high sulphur steels \| Ironmaking & Steelmaking Vol. 46 No. 7 Page 663-670 \| Taylor & Francis
2019	Journal	Kamaraj, Ashok; Mandal, GK; Roy, GG; \| Control of Slag Carryover from the BOF Vessel During Tapping: BOF Cold Model Studies \| Metallurgical and Materials Transactions B Vol. 50 No. 1 Page 438-458 \| Springer US
2019	Journal	Dinda, Soumitra Kumar; Jana, Subhodeep; Roy, Gour Gopal; Srirangam, Prakash; \| Effect of beam oscillation on porosity and intermetallics of electron beam welded DP600-steel to Al 5754-alloy \| Journal of Materials Processing Technology Vol. 265 No. Page 191-200 \| Elsevier
2019	Journal	Kar, Jyotirmaya; Chakrabarti, Debalay; Roy, Sanat Kumar; Roy, Gour Gopal; \| Beam oscillation, porosity formation and fatigue properties of electron beam welded Ti-6Al-4V alloy \| Journal of Materials Processing Technology Vol. 266 No. Page 165-172 \| Elsevier
2019	Journal	Mohanasundaram, Madan; Roy, Gour Gopal; Prakash, Swatantra; \| Thermodynamic Modelling for Design of Synthetic Slag for Inclusion Removal \| Transactions of the Indian Institute of Metals Vol. 72 No. 4 Page 1111-1118 \| Springer India
2019	Journal	Dinda, Soumitra Kumar; Srirangam, Prakash; Roy, Gour Gopal; \| Effects of Beam Oscillation on Porosity and Intermetallic Compounds Formation of Electron Beam Welded DP600 Steel to Al-5754 Alloy Joints \| TMS 2019 148th Annual Meeting & Exhibition Supplemental Proceedings Vol. No. Page 239-249 \| Springer, Cham
2019	Journal	Sahoo, Manisha; Sarkar, Sidhartha; Das, Ajoy CR; Roy, Gour Gopal; Sen, Prodip Kumar; \| Role of Scrap Recycling for CO2 Emission Reduction in Steel Plant: A Model Based Approach \| steel research international Vol. 90 No. 8 Page 1900034 \|
2019	Journal	Kumar, Binay; Roy, GG; \| Calcium cored wire injection for stable casting: An insight into fundamentals and economics \| Vol. No. Page \|
2018	Journal	Mishra, S; Roy, GG; \| Effect of CaO on the reduction behaviour of iron ore–coal composite pellets in multi-layer bed rotary hearth furnace \| Ironmaking & Steelmaking Vol. 45 No. 5 Page 426-433 \| Taylor & Francis
2018	Journal	Sarkar, Sidhartha; Bhattacharya, Rahul; Roy, Gour Gopal; Sen, Prodip Kumar; \| Modeling MIDREX based process configurations for energy and emission analysis \| steel research international Vol. 89 No. 2 Page 1700248 \|
2018	Journal	Kar, Jyotirmaya; Roy, Sanat Kumar; Roy, Gour Gopal; \| Influence of beam oscillation in electron beam welding of Ti-6AL-4V \| The International Journal of Advanced Manufacturing Technology Vol. 94 No. 44174 Page 4531-4541 \| Springer London
2018	Journal	Das, Debasish; Pratihar, Dilip Kumar; Roy, Gour Gopal; Pal, Abhishek Rudra; \| Phenomenological model-based study on electron beam welding process, and input-output modeling using neural networks trained by back-propagation algorithm, genetic algorithms, particle swarm optimization algorithm and bat algorithm \| Applied Intelligence Vol. 48 No. 9 Page 2698-2718 \| Springer US
2018	Journal	Kar, Jyotirmaya; Dinda, Soumitra Kumar; Roy, Gour Gopal; Roy, Sanat Kumar; Srirangam, Prakash; \| X-ray tomography study on porosity in electron beam welded dissimilar copper–304SS joints \| Vacuum Vol. 149 No. Page 200-206 \| Pergamon
2018	Journal	Das, Debasish; Pratihar, Dilip Kumar; Roy, Gour Gopal; \| Cooling rate predictions and its correlation with grain characteristics during electron beam welding of stainless steel \| The International Journal of Advanced Manufacturing Technology Vol. 97 No. 44048 Page 2241-2254 \| Springer London
2018	Journal	Singh, Anubhav; Basak, Shamik; PS, Lin Prakash; Roy, Gour Gopal; Jha, Maha Nand; Mascarenhas, Martin; Panda, Sushanta Kumar; \| Prediction of earing defect and deep drawing behavior of commercially pure titanium sheets using CPB06 anisotropy yield theory \| Journal of Manufacturing Processes Vol. 33 No. Page 256-267 \| Elsevier
2018	Journal	kumar Sharma, Mukesh; Roy, GG; Sen, PK; \| Reduction Kinetics of Iron Ore Graphite Composite Pellets in Rotary Hearth Furnace \| Vol. No. Page \|
2018	Journal	Bandi, Bharath; Dinda, Soumitra Kumar; Kar, Jyotirmaya; Roy, Gour Gopal; Srirangam, Prakash; \| Effect of weld parameters on porosity formation in electron beam welded Zircaloy-4 joints: X-ray tomography study \| Vacuum Vol. 158 No. Page 172-179 \| Pergamon
2018	Journal	Prakash, PS Lin; Biswal, Sunil Kumar; Roy, Gour Gopal; Jha, Maha Nand; Mascarenhas, Martin; Panda, Sushanta Kumar; \| Effect of Orientation of Weld Line on Formability of Electron Beam-Welded Dissimilar Thickness Titanium Sheets \| Journal of Materials Engineering and Performance Vol. 27 No. 11 Page 5913-5925 \| Springer US
2017	Journal	Mishra, Srinibash; Roy, Gour Gopal; \| Reduction behaviour of iron ore–coal composite pellets in rotary hearth furnace (RHF): effect of pellet shape, size, and bed packing material \| Transactions of the Indian Institute of Metals Vol. 70 No. 4 Page 967-978 \| Springer India
2017	Journal	Kumar, Binay; Mishra, Srinibash; Roy, Gour Gopal; Sen, Prodip Kumar; \| Estimation of carbon dioxide emissions in rotary hearth furnace using a thermodynamic model \| steel research international Vol. 88 No. 5 Page 1600265 \|
2017	Journal	Kar, Jyotirmaya; Roy, Sanat Kumar; Roy, Gour Gopal; \| Effect of beam oscillation on microstructure and mechanical properties of AISI 316L electron beam welds \| Metallurgical and materials transactions A Vol. 48 No. 4 Page 1759-1770 \| Springer US
2017	Journal	Beuria, PC; Biswal, SK; Mishra, BK; Roy, GG; \| Kinetics of thermal decomposition of hydrated minerals associated with hematite ore in a fluidized bed reactor \| International Journal of Minerals, Metallurgy, and Materials Vol. 24 No. 3 Page 229-239 \| University of Science and Technology Beijing
2017	Journal	Khurana, Bharat; Spooner, Stephen; Rao, MBV; Roy, Gour Gopal; Srirangam, Prakash; \| In situ Observation of calcium oxide treatment of inclusions in Molten steel by confocal microscopy \| Metallurgical and Materials Transactions B Vol. 48 No. 3 Page 1409-1415 \| Springer US
2017	Journal	Kamaraj, Ashok; Hore, Sheuli; Sathyamoorthi, P; Roy, Gour G; Mandal, Gopi K; \| Estimation and Analysis of Excess Oxygen Input into Ladle During Liquid Steel Tapping \| Transactions of the Indian Institute of Metals Vol. 70 No. 9 Page 2465-2476 \| Springer India
2017	Journal	Prakash, PS Lin; Rajak, Bijoy; Panda, Sushanta Kumar; Roy, Gour Gopal; Jha, Maha Nand; Mascarenhas, Martin; \| Mechanical Properties and Stretch Forming Behaviour of Electron Beam Welded Titanium Sheets of Grade-2 and Grade-5 \| Materials Today: Proceedings Vol. 4 No. 2 Page 908-916 \| Elsevier
2017	Journal	Beuria, PC; Biswal, SK; Mishra, BK; Roy, GG; \| Study on kinetics of thermal decomposition of low LOI goethetic hematite iron ore \| International Journal of Mining Science and Technology Vol. 27 No. 6 Page 1031-1036 \| Elsevier
2016	Journal	3D imaging and quantification of porosity in electron beam welded dissimilar steel to Fe-Al alloy joints by X-ray tomography by Dinda S. K., Warnett J. M., Williams M. A., Roy G. G., Srirangam P. Materials & Design 96 224-231 (2016)
2016	Journal	Das, Debasish; Pratihar, Dilip Kumar; Roy, Gour Gopal; \| Electron beam melting of steel plates: temperature measurement using thermocouples and prediction through finite element analysis \| CAD/CAM, Robotics and Factories of the Future Vol. No. Page 579-588 \| Springer, New Delhi
2016	Journal	Kar, Jyotirmaya; Roy, Sanat Kumar; Roy, Gour Gopal; \| Effect of beam oscillation on electron beam welding of copper with AISI-304 stainless steel \| Journal of Materials Processing Technology Vol. 233 No. Page 174-185 \| Elsevier
2016	Journal	Dinda, Soumitra Kumar; Warnett, Jason M; Williams, Mark A; Roy, Gour Gopal; Srirangam, Prakash; \| 3D imaging and quantification of porosity in electron beam welded dissimilar steel to Fe-Al alloy joints by X-ray tomography \| Materials & Design Vol. 96 No. Page 224-231 \| Elsevier
2016	Journal	Mishra, Srinibash; Roy, Gour Gopal; \| Effect of amount of carbon on the reduction efficiency of iron ore-coal composite pellets in multi-layer bed rotary hearth furnace (RHF) \| Metallurgical and Materials Transactions B Vol. 47 No. 4 Page 2347-2356 \| Springer US
2016	Journal	Mohanty, K; Roy, GG; Chakraborti, N; \| Simulation and meta-modeling of electron beam welding using genetic algorithms \| Metallurgia Italiana Vol. No. 3 Page 45-48 \| ASSOC ITALIANA METALLURGIA PIAZZALE RODOLFO MORANDI, 2, MILAN, 20121, ITALY
2016	Journal	Beuria, PC; Biswal, SK; Mishra, BK; Roy, GG; \| Kinetics study on removal of LOI by thermal decomposition of hydrated minerals associated in hematite ore \| Journal of Thermal Analysis and Calorimetry Vol. 126 No. 3 Page 1231-1241 \| Springer Netherlands
2016	Journal	Dinda, Soumitra Kumar; Sk, Md Basiruddin; Roy, Gour Gopal; Srirangam, Prakash; \| Microstructure and mechanical properties of electron beam welded dissimilar steel to Fe–Al alloy joints \| Materials Science and Engineering: A Vol. 677 No. Page 182-192 \| Elsevier
2016	Journal	Dey, HC; Vanaja, J; Laha, K; Bhaduri, AK; Albert, SK; Roy, GG; \| Comparison of creep rupture behavior of tungsten inert gas and electron beam welded grade 91 steel \| Proceedings of the seventh international conference on creep, fatigue and creep-fatigue interaction Vol. No. Page \|
2015	Journal	Kumari, Vandana; Roy, GG; Sen, PK; \| Mathematical model to estimate the rate parameters and thermal efficiency for the reduction of iron ore–coal composite pellets in multi-layer bed at rotary hearth furnace \| Transactions of the Indian Institute of Metals Vol. 68 No. 1 Page 109-116 \| Springer India
2015	Journal	Khattoi, SC; Roy, GG; \| Reduction Efficiency of Iron Ore–Coal Composite Pellets in Tunnel Kiln For Sponge Iron Production \| Transactions of the Indian Institute of Metals Vol. 68 No. 5 Page 683-692 \| Springer India
2015	Journal	Kar, Jyotirmaya; Mahanty, Sankhya; Roy, Sanat K; Roy, GG; \| Estimation of average spot diameter and bead penetration using process model during electron beam welding of AISI 304 stainless steel \| Transactions of the Indian Institute of Metals Vol. 68 No. 5 Page 935-941 \| Springer India
2015	Journal	Sen, P; Biswas, C; Das, P; Roy, GG; \| Optimisation of coal rate and carbon dioxide emissions in Corex process \| Mineral Processing and Extractive Metallurgy Vol. 124 No. 3 Page 175-183 \| Taylor & Francis
2014	Journal	Dey, HC; Albert, SK; Bhaduri, AK; Roy, GG; Balakrishnan, R; Panneerselvi, S; \| Effect of post-weld heat treatment (PWHT) time and multiple PWHT on mechanical properties of multi-pass TIG weld joints of modified 9Cr-1Mo steel \| Welding in the World Vol. 58 No. 3 Page 389-395 \| Springer Berlin Heidelberg
2014	Journal	Chowdhury, Golap M; Roy, Gour G; \| Application of Genetic Algorithm (GA) to estimate the rate parameters for reduction of iron ore-graphite composite pellets in a packed bed reactor. \| Vol. No. Page \|
2013	Journal	Sharma, MK; Solanki, V; Roy, GG; Sen, PK; \| Study of reduction behaviour of prefabricated iron ore–graphite/coal composite pellets in rotary hearth furnace \| Ironmaking & Steelmaking Vol. 40 No. 8 Page 590-597 \| Taylor & Francis
2013	Journal	Suman, Sekhar; Giri, Brijesh K; Roy, Gour G; \| Mathematical modelling of iron ore sintering process using genetic algorithm: effect of moisture evaporation and condensation on the temperature profile \| Computer Methods in Materials Science Vol. 1 No. Page 141-146 \|
2013	Journal	Khattoi, SC; Roy, GG; \| Sponge Iron Production From Ore-Coal Composite Pellets in Tunnel Kiln \| Vol. No. Page \|
2012	Journal	Giri, BK; Roy, GG; \| Mathematical modelling of iron ore sintering process using genetic algorithm \| Ironmaking & Steelmaking Vol. 39 No. 1 Page 59-66 \| Taylor & Francis
2012	Journal	Mohanty, Sankhya; Laldas, Chandan Kumar; Roy, Gour Gopal; \| A new model for keyhole mode laser welding using FLUENT \| Transactions of the Indian Institute of Metals Vol. 65 No. 5 Page 459-466 \| Springer-Verlag
2011	Journal	Roy, GG; \| A Review of:“Handbook of the Thermal Process Modeling of Steels CH Gür and J. Pan (Eds.),” CRC Press, Boca Raton, FL, USA, 739 pages, ISBN: 9780849350191. \| Vol. No. Page \| Taylor & Francis Group
2011	Journal	DebRoy, T; Arora, A; Roy, GG; De, A; \| Advances and Promises of Weld Pool Convective Heat Transfer Calculations \| Vol. No. Page \| na
2010	Journal	Efficacy and recovery of calcium during CaSi cored wire injection in steel melts by Basak S., Dhal R. K., Roy G. G. Ironmaking & Steelmaking 37 161-168 (2010)
2010	Journal	Basak, S; Kumar Dhal, R; Roy, GG; \| Efficacy and recovery of calcium during CaSi cored wire injection in steel melts \| Ironmaking & Steelmaking Vol. 37 No. 3 Page 161-168 \| Taylor & Francis
2010	Journal	Arora, A; Roy, GG; DebRoy, Tarasankar; \| Cooling rate in 800 to 500 C range from dimensional analysis \| Science and Technology of Welding and Joining Vol. 15 No. 5 Page 423-427 \| Taylor & Francis
2010	Journal	Chowdhury, GM; Murmu, CS; Roy, SK; Roy, GG; \| Some Studies to Establish the Reaction Mechanism for the Reduction of Iron Ore?Graphite Composite Pellets in a Packed Bed Reactor \| steel research international Vol. 81 No. 11 Page 925-931 \| WILEY?VCH Verlag Weinheim
2009	Journal	Application of genetic Algorithm (GA) to estimate the rate parameters for solid state reduction of iron ore in presence of graphite by Chowdhary G. M., Roy G. G. Computational Materials Science 45 176-180 (2009)
2009	Journal	Arora, A; Roy, GG; DebRoy, Tarasankar; \| Unusual wavy weld pool boundary from dimensional analysis \| Scripta Materialia Vol. 60 No. 2 Page 68-71 \| Pergamon
2009	Journal	Chowdhury, Golap Md; Roy, Gour G; \| Application of Genetic Algorithm (GA) to estimate the rate parameters for solid state reduction of iron ore in presence of graphite \| Computational materials science Vol. 45 No. 1 Page 176-180 \| Elsevier
2009	Journal	Taha, ZA; Roy, GG; Hajim, KI; Manna, I; \| Mathematical modeling of laser-assisted transmission lap welding of polymers \| Scripta Materialia Vol. 60 No. 8 Page 663-666 \| Pergamon
2008	Journal	Reduction Kinetics of Iron Ore-Graphite Composite Pellets in a Packed Bed Reactor under Inert and Reactive Atmospheres by Chowdhury G. M., Roy G. G., Roy S. K. Metallurgical & Materials Transaction B 39(2) 160-178 (2008)
2008	Journal	Chowdhury, GM; Roy, GG; Roy, SK; \| Reduction kinetics of iron ore-graphite composite pellets in a packed-bed reactor under inert and reactive atmospheres \| Metallurgical and Materials Transactions B Vol. 39 No. 2 Page 160-178 \| Springer US
2008	Journal	Chowdhury, GM; Roy, GG; Roy, SK; \| Estimation of rate parameters for reduction of iron ore–graphite composite pellets in packed bed reactor using genetic algorithm \| Ironmaking & Steelmaking Vol. 35 No. 1 Page 14-20 \| Taylor & Francis
2007	Journal	Three-dimensional Heat and Material Flow during Friction Stir Welding of Mild Steel by Nandan R., Linert T. J., Roy G. G., Debroy T. Acta. Materialia 55 883-895 (2007)
2007	Journal	Nandan, RGGR; Roy, GG; Lienert, TJ; Debroy, Tarasankar; \| Three-dimensional heat and material flow during friction stir welding of mild steel \| Acta materialia Vol. 55 No. 3 Page 883-895 \| Pergamon
2007	Journal	Rai, R; Roy, GG; DebRoy, Tarasankar; \| A computationally efficient model of convective heat transfer and solidification characteristics during keyhole mode laser welding \| Journal of Applied Physics Vol. 101 No. 5 Page 54909 \| American Institute of Physics
2006	Journal	Dimensionless correlation to estimate peak temperature during friction stir welding by Roy G. G., Nandan R. , Debroy T. Sci. Technol. Weld. Joining 11 606-608 (2006)
2006	Journal	Mathematical modeling of heat transfer, fluid flow and solidification during linear welding with a pulsed laser beam by Roy G. G., Elmer J. W., Debroy T. Journal of Applied Physics 100 1-7 (2006)
2006	Journal	Nandan, R; Roy, GG; Debroy, Tarasankar; \| Numerical simulation of three-dimensional heat transfer and plastic flow during friction stir welding \| Metallurgical and materials transactions A Vol. 37 No. 4 Page 1247-1259 \| Springer-Verlag
2006	Journal	Nandan, R; Roy, GG; Lienert, TJ; DebRoy, Tarasankar; \| Numerical modelling of 3D plastic flow and heat transfer during friction stir welding of stainless steel \| Science and Technology of Welding and Joining Vol. 11 No. 5 Page 526-537 \| Taylor & Francis
2006	Journal	Roy, GG; Nandan, R; DebRoy, Tarasankar; \| Dimensionless correlation to estimate peak temperature during friction stir welding \| Science and Technology of welding and Joining Vol. 11 No. 5 Page 606-608 \| Taylor & Francis
2006	Journal	Roy, GG; Elmer, JW; DebRoy, Tarasankar; \| Mathematical modeling of heat transfer, fluid flow, and solidification during linear welding with a pulsed laser beam \| Journal of Applied Physics Vol. 100 No. 3 Page 34903 \| American Institute of Physics
2006	Journal	Sanyal, Sarbendu; Chandra, Sanjay; Khullar, Akshay; Roy, GG; \| Dissolution kinetics of cored wire in molten steel \| steel research international Vol. 77 No. 8 Page 542-549 \|
2005	Journal	Kumar, Amit; Roy, GG; \| Application of the genetic algorithm to estimate the parameters related to the kinetics of the reduction of the iron ore, coal mixture \| Metallurgical and Materials Transactions B Vol. 36 No. 6 Page 901-904 \| Springer-Verlag
2005	Journal	Kumar, Amit; Roy, GG; \| Mathematical Modeling-Communication: Application of the Genetic Algorithm to Estimate the Parameters Related to the Kinetics of the Reduction of the Iron Ore, Coal Mixture \| Metallurgical and Materials Transactions-Series B Vol. 36 No. 6 Page 901-904 \| Warrendale, PA: Minerals, Metals & Materials Society; Materials Park, OH …
2005	Journal	Chowdhury, GM; Roy, GG; Roy, SK; \| APPLICATION OF GENETIC ALGORITHM TO ESTIMATE THE KINETIC PARAMETERS RELATED TO THE PACKED BED REDUCTION OF IRON ORE-GRAPHITE COMPOSITE PELLETS \| Transactions of the Indian Institute of Metals Vol. 58 No. 5 Page \|
2004	Journal	An Improved Model of Cored Wire Injection in Steel Melts by Sanyal S., Chandra S. , Kumar S. , Roy G. G. ISIJ International 44 1157-1166 (2004)
2004	Journal	Sanyal, Sarbendu; Chandra, Sanjay; Kumar, Suresh; GG, Roy; \| An improved model of cored wire injection in steel melts \| ISIJ international Vol. 44 No. 7 Page 1157-1166 \| The Iron and Steel Institute of Japan
2004	Journal	Ghorai, Satadal; Roy, GG; Roy, SK; \| Submerged liquid slag injection in steel melt: scaleup study using cold model and dimensional analysis \| Ironmaking & steelmaking Vol. 31 No. 5 Page 401-408 \| Taylor & Francis
2004	Journal	Sanyal, Sarbendu; Chandra, Sanjay; Singh, Amreekh; Roy, GG; \| Modelling cored wire injection in steel melts \| Transactions of the Indian Institute of Metals Vol. 57 No. 2 Page 157-169 \|
2004	Journal	Ghorai, Satadal; GG, Roy; \| Physical simulation of impurity removal through submerged liquid slag injection in steel melt \| ISIJ international Vol. 44 No. 1 Page 37-42 \| The Iron and Steel Institute of Japan
2004	Journal	Ghorai, Satadal; Roy, GG; Roy, SK; \| Steel refining through submerged liquid slag injection: Effect of partial injection by a cold model study \| Transactions of the Indian Institute of Metals Vol. 57 No. 2 Page 103-108 \|
2004	Journal	Chowdhury, GM; Roy, GG; Roy, SK; \| PACKED BED REDUCTION OF IRON ORE-GRAPHITE COMPOSITE PELLETS \| Transactions of the Indian Institute of Metals Vol. 57 No. 5 Page \|
2004	Journal	Ghorai, S; Sanyal, S; Roy, GG; \| Modelling and Simulation in Metallurgical Processes with Some Case Studies Related to Steel Refining and Casting. \| Indian Foundry Journal Vol. 50 No. 2 Page 29-37 \|
2004	Journal	SANYAL, Sarbendu; CHANDRA, Sanjay; KUMAR, Suresh; ROY, GG; \| Indian Patent Indian Patent, 2004 \| ISIJ international Vol. 44 No. 7 Page 1157-1166 \|
2004	Journal	SANYAL, Sarbendu; CHANDRA, Sanjay; KUMAR, Suresh; ROY, GG; \| Tata Search 78, 1997 \| ISIJ international Vol. 44 No. 7 Page 1157-1166 \|
2003	Journal	Modeling of heat transfer and fluid flow during gas tungsten arc spot welding of low carbon steel by Zhang W., Roy G. G., Elmer J. , Debroy T. Journal of Applied Physics 93 3022-3033 (2003)
2003	Journal	Zhang, W; Roy, GG; Elmer, JW; DebRoy, Tarasankar; \| Modeling of heat transfer and fluid flow during gas tungsten arc spot welding of low carbon steel \| Journal of Applied Physics Vol. 93 No. 5 Page 3022-3033 \| American Institute of Physics
2003	Journal	Chakraborti, N; Kumar, K Suresh; Roy, GG; \| A heat transfer study of the continuous caster mold using a finite volume approach coupled with genetic algorithms \| Journal of materials engineering and performance Vol. 12 No. 4 Page 430-435 \| Springer-Verlag
2003	Journal	Ghorai, S; Roy, GG; Roy, SK; \| Dimensional analysis of submerged liquid slag injection in steel melt. \| Transactions of the Indian Institute of Metals Vol. 56 No. 5 Page \|
2002	Journal	DebRoy, T; Zhao, H; Zhang, W; Roy, GG; \| Weld pool heat and fluid flow in probing weldment characteristics \| BOOK-INSTITUTE OF MATERIALS Vol. 784 No. Page 21-42 \| INSTITUTE OF MATERIALS
2001	Journal	Chaudhary, PN; Goel, RP; Roy, GG; \| Dephosphorisation of high carbon ferromanganese using BaCO3 based fluxes \| Ironmaking & steelmaking Vol. 28 No. 5 Page 396-403 \| Taylor & Francis
2001	Journal	Roy, GG; Chaudhary, PN; Minj, RK; Goel, RP; \| Dephosphorization of ferromanganese using BaCO 3-based fluxes by submerged injection of powders: A preliminary kinetic study \| Metallurgical and Materials Transactions B Vol. 32 No. 3 Page 558-561 \| Springer-Verlag
2001	Journal	Roy, GG; Chaudhary, PN; Minj, RK; Goel, RP; \| Transport Phenomena-Communication: Dephosphorization of Ferromanganese using BaCO3-Based Fluxes by Submerged Injection of Powders: A Preliminary Kinetic Study \| Metallurgical and Materials Transactions-Series B Vol. 32 No. 3 Page 558-561 \| Warrendale, PA: Minerals, Metals & Materials Society; Materials Park, OH …
2000	Journal	Roy, GG; Bera, A; Mankar, JH; \| Effect of design and operating parameters on gas hold-up in Pachuca (air-agitated) tanks \| Mineral Processing and Extractive Metallurgy Vol. 109 No. 2 Page 90-96 \| Taylor & Francis
1999	Journal	Mazumdar, Dipak; Guthrie, Roderick IL; Roy, GG; \| Discussion of" decay of fluid motion in a filling ladle after tapping"/author's reply \| Metallurgical and Materials Transactions Vol. 30 No. 3 Page 541 \| Springer Nature BV
1998	Journal	Roy, GG; Shekhar, R; Mehrotra, SP; \| Particle suspension in (air-agitated) pachuca tanks \| Metallurgical and Materials Transactions B Vol. 29 No. 2 Page 339-349 \| Springer-Verlag
1998	Journal	Roy, GG; \| Decay of fluid motion in a filling ladle after tapping \| Metallurgical and Materials Transactions B Vol. 29 No. 4 Page 935-938 \| Springer-Verlag
1996	Journal	Roy, GG; Shekhar, R; \| Oxygen mass transfer in air-agitated Pachuca tanks. Pt. 1: laboratory-scale experimental measurements \| Transactions of the Institution of Mining and Metallurgy. Section C. Mineral Processing and Extractive Metallurgy Vol. 105 No. Page \|
1996	Journal	Roy, GG; Shekhar, R; \| Oxygen mass transfer in air-agitated Pachuca tanks. Pt. 2: mathematical modelling of mass-transfer coefficients \| Transactions of the Institution of Mining and Metallurgy. Section C. Mineral Processing and Extractive Metallurgy Vol. 105 No. Page \|
1995	Journal	Roy, GG; Ghosh, MK; Anand, S; Das, RP; \| A MODEL FOR DISSOLUTION OF METAL SULFIDES UNDER OXIDATIVE AMMONIACAL CONDITIONS-ZNS-PBS-NH3-O-2 SYSTEM \| Vol. No. Page \| Indian Institute Of Metals
1993	Journal	Roy, GG; Shekhar, R; \| Oxygen mass transfer in Pachuca tanks \| Hydrotech 93. Interactive Meet on Hydrometallurgical Techniques for Recovery of Non-Ferrous Metals From Waste and Complex Materials Vol. No. Page 133-139 \|
1992	Journal	Roy, GG; Sing, V; Mazumdar, D; \| On the mathematical modelling of turbulent fluid flow in filling ladles \| Transactions of the Indian Institute of Metals(India) Vol. 45 No. 3 Page 147-152 \|
1990	Journal	Roy, GG; Chakraborti, N; Sundararajan, T; \| Applicability of potential flow assumption for bubbles in copper-making condition \| Metallurgical Transactions B Vol. 21 No. 6 Page 1075-1079 \| Springer-Verlag

Projects

Principal Investigator

Charge for XRD and FESEM at DHI CoE AMT Various Government and Non-Government Organisations
Outstation SEM Analysis GOVERNMENT AND PRIVATE AGENCIES
Non Metallic Inclusions (NMI) and its Control, New Steel Products through Energy Efficient EAF at HEC Department of Heavy Industries (DHI)
Development of Rotary Hearth Furnace Technology for Treating Off Grade Iron Ore Fines of Indian Origin Including Magnetite Ore (UAY_I_IITKGP_018) MHRD
Uchhatar Avishkar Yojana MHRD
Testing on EBW machine at STC, IIT Kharagpur Various Govt./Industrial/Private Organization

Co-Principal Investigator

Laser-Assisted Additive Manufacturing of Steel (LAMS) Apex Committee of SPARC
Study on Plant Parameter Optimisation for Adoption of Energy Efficient Technologies for Vijayanagar Steel Plant of JSW Steel Ltd. JSW Steel Limited
Development of Microstructurally, compositionally and Functionally Graded Components by Laser Assisted Materials Processing [LAMP] Department of Science and Technology(DST)
Selection of Raw Materials for Additive Manufacturing Applications in Relation to the Design Requirements; and Life Cycle Analysis of Additive Manufacturing Process for Different Materials TATA MOTORS LIMITED
Exploring Solutions for Various Technological Challenges in Metal Additive Manufacturing Technology and Sharing the Relevant Know-how with Indian Heavy Engineering Industries Department of Heavy Industries (DHI)

Awards

Editorial board member, STWJ
METALLURGIST OF THE YEAR, 2015
SAIL GOLD MEDAL-2005

Indian Institute of Technology Kharagpur

Faculty Details