Indian Institute of Technology Kharagpur

Faculty Details

Prof. Indrani Sen

Associate Professor

indrani.sen@metal.iitkgp.ac.in

+91-3222-283252

Website

Research Area

Advanced Steel Functional Materials Additive Manufacturing Creep Fatigue and Fracture High Temperature Materials

Research

One of the primary focus of the group is to correlate microstructure with small scale mechanical properties of NiTi based shape memory alloys. SMAs with a large extent of strain recoverability, termed as pseudoelasticity is increasingly used for miniaturized devices as cardio-vascular stents, sensors, micro-actuators, MEMS etc. Orientation of the grains significantly affect and control the extent of pseudoelasticity. Small scale mechanical performances of such SMAs with a special emphasis on determining the best possible orientations that yield best pseudoelasticity are characterized by the group by implementing indentation.

Mechanical performance and especially fatigue behavior of metallic alloys used for biomedical applications are of serious concern. One of the primary focus of the group is to characterize the in-vitro tensile and fatigue performances of such alloys such as Steels, NiTi and Ti alloys. Biomedical implants including cardiovascular stents, orthodontic braces etc. are used in the form of wires. Such implants tend to withstand corrosive atmosphere inside the body along with substantial stresses and their fluctuations for prolonged periods. To characterize their performance, tensile and fatigue properties of wires are studied by the group by immersing the wires in body like atmosphere in simulated body fluids along with the application of fluctuating loads. Moreover, studies are also performed on alloys used for marine applications, for example Steels with the application of saline water along with monotonic and fluctuating loads.

High temperature alloys such as newly developed third generation TiAl based intermetallic alloys are increasingly used in aerospace applications owing to their outstanding high temperature strength. Performance of such alloys with the simultaneous application of higher temperatures and fluctuating loads are aimed to be investigated by the group. The objective is to characterize the high temperature mechanical performances of indigenously produced alloys which would be beneficial for aerospace and defense applications.

Research Areas

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Publication

YearCategoryTitle
2020 Journal Fatigue in Ti-6Al-4V-B alloys by Indrani Sen, K. Gopinath, R. Datta and U. Ramamurty Acta Materialia 58 - (2010)
2020 Journal Kumar, Sujith; Kumar, I Anand; Marandi, Lakhindra; Sen, Indrani; | Assessment of small-scale deformation characteristics and stress-strain behavior of NiTi based shape memory alloy using nanoindentation | Acta Materialia Vol. No. Page 16375 | Pergamon
2019 Journal Marandi, Lakhindra; Sen, Indrani; | Effect of Saline Atmosphere on the Mechanical Properties of Commercial Steel Wire | Metallurgical and Materials Transactions A Vol. 50 No. 1 Page 132-141 | Springer US
2019 Journal Cakmak, Ercan; Nandwana, Peeyush; Shin, Dongwon; Yamamoto, Yukinori; Gussev, Maxim N; Sen, Indrani; Seren, M Hazar; Watkins, Thomas R; Haynes, J Allen; | A comprehensive study on the fabrication and characterization of Ti–48Al–2Cr–2Nb preforms manufactured using electron beam melting | Materialia Vol. 6 No. Page 100284 | Elsevier
2019 Journal Kumar, Sujith; Marandi, Lakhindra; Balla, Vamsi K; Bysakh, Sandip; Piorunek, David; Eggeler, Gunther; Das, Mitun; Sen, Indrani; | Microstructure–Property correlations for additively manufactured NiTi based shape memory alloys | Materialia Vol. 8 No. Page 100456 | Elsevier
2017 Journal Sen, Indrani; Roy, Shibayan; Wagner, Martin F?X; | Indentation Response and Structure?Property Correlation in a Bimodal Ti–6Al–4V Alloy | Advanced Engineering Materials Vol. 19 No. 12 Page 1700298 |
2016 Journal Mechanical behavior of steel wire in corrosive atmosphere and fatigue studies by Lakhindra Marandi and Indrani Sen Proceedings of 7th International Conference on Creep, Fatigue and Creep-Fatigue interaction - (2016)

Projects

Co-Principal Investigator

Development of High Performance Materials for Various Defence Related Applications Directorate of extramural research & intellectual property rights (ER&IPR), DRDO

Awards

  • Av Humboldt Fellowship
  • AvHumboldt Fellowship, Germany
  • Institute Silver Medal,IIT Kgp
  • National Doctoral Fellowship
  • Venus InternationalWomen Award