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Partha Protim Chattopadhyay presents studies of the influence of deformation processing on a TiNi shape memory alloy. The work was done with Arijit Sinha at the Bengal Engineering and Science University. There is an interesting relationship discovered of the recoverable strain as a function of the hardness to elastic modulus ratio, using machine learning methods.

The shape memory effect was first discovered by Kurjumov and Khandros,
\"First reports of the thermoelastic behaviour of the martensitic phase of Au-Cd alloys.\" Doklady Akademii Nauk SSSR 66.1949 (1949): 211-213.

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