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Faculty details Nithyanand Prabhu

Professor

Nithyanand Prabhu

Email: nprabhu[at]iitb[dot]ac[dot]in

Phone: (+91) (022) 2576 7624

Education: 

  • Phd­-Metallurgical Engineering and Materials Science, Carnegie Mellon University, Pittsbugh, 1991
  • B. Tech­ Metallurgical Engineering, IIT Bombay ­ 1985
Research areas

Mechanical Behaviour & Computational Mechanics

Teaching

In his teaching, Prof. N.Prabhu, lays emphasis on the fundamental concepts while simultaneously illustrating the principles with practical developments. Some courses taught are 

Undergraduate Courses: Phase Transformations, Metallography Lab,

Heat Treatment Lab Postgraduate Courses: Topics in Phase Transformations, X­ray Diffraction and Electron Microscopy, Characterization of Materials

Research profile

The theme of Prof. Prabhu's research is "Processing­structure­property relationship" in different materials. His research scholars have explored this relationship in Mg­, Al­, Ti­alloys and in steels viz., HSLA steel, Dual­phase steel, Super­duplex stainless steel and austenitic stainless steel. Currently he is collaborating with NMRL, Ambernath to develop suitable High­Entropy Alloy (HEA) for naval applications.

Research interest
  • Phase Transformations 
  • Electron Microscopy 
  • Physical Metallurgy

Microstructure evolution in friction stir processed 2507 super duplex stainless steel. Schematic diagram depicting the individual and synergistic effect of processing parameters such as heat input, strain rate and strain on grain size with respect to the traverse to rotation speed ratio and the thickness of sheet[1]

Strain induced martensite formation in 304 stainless steel. a) EBSD­inverse pole figure map and b) phase map of austenite (70%) and martensite (30%) for the transition zone of SS­I after tensile deformation, showing SIM association with micro shear bands. Red: Austenite, Green: Ferrite[2]

Friction stir processed, metastable, dual­phase, Fe49.5Mn30Co10Cr10C0.5, multi­principal element alloy (a) TEM bright field image showing the presence of M23C6 precipitates, (b) SAED pattern showing strong matrix reflections and weak precipitate reflections, (c) HAADF image showing the precipitates encircled in yellow colour (d) X­ray elemental map showing the distribution of carbon and (e) chromium in the microstructure[3]

References
  1. M.K. Mishra, A.G. Rao, I. Balasundar, B.P. Kashyap, N. Prabhu, On the microstructure evolution in friction stir processed 2507 super duplex stainless steel and its effect on tensile behaviour at ambient and elevated temperatures, Materials Science & Engineering A 719 (2018) 82–92, doi.org.10.1016.j.msea.2018.02.032 
  2. Sailaja Sharma, B. Ravi Kumar, B.P. Kashyap, N. Prabhu, Effects of concurrent strain induced martensite formation on tensile and texture properties of 304L stainless steel of varying grain size distribution, Materials Science & Engineering A 725 (2018) 215–227, doi.org.10.1016.j.msea.2018.03.099 
  3. Neelam Meena, G. Gunasekaran, P. Veereiah, A.G. Rao, N. Prabhu, Corrosion behaviour of friction stir processed, metastable, dual­phase, Fe49.5Mn30Co10Cr10C0.5, multi­principal element alloy, Journal of Alloys and Compounds 952 (2023) 169967, doi.org.10.1016.j.jallcom.2023.169967