Past PhD Scholars
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- Athira K. S.
Athira defended her dissertation recently (June 2024) on welding response of precipitation
strengthened superalloys. Her work brought out the critical role played by fine grain boundary
precipitates on the microstructure and properties of welded and post weld heat treated Ni-base
superalloys. In contrast to Ni-base alloys, she showed that the precipitation of the gamma prime
phase in a recently developed Co-base superalloy happens very rapidly during weld cooling and it
leads to a very different welding response. While some findings were rationalized based on
thermodynamics and kinetics, some are still being worked out.
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- Pankaj (Jointly with SB)
Pankaj's work established a computational methodology to study morphological evolution in binary nanoparticles
(BNPs). He developed an embedded domain phase field model for studying phase separation in finite systems using
FFT-based algorithms. The work highlighted a connection between BNP morphologies (e.g., core-shell, Janus,
inverse core-shell) and variables such as temperature, composition, particle size and contact angle.
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