Academic Contributions of Academician Xu Zuyao(T.Y.Hsu)

Aacademic contributions of academician Xu Zuyao on maternsitic and bainitic transformations,and shape memory materials were described,including: revealing existence of interstitial atoms(or ions) diffusion in diffusionless martensitic transformation;consummating the thermodynamics of martensitic transformation in ferrous alloys;solving a difficult topic involving calculating the starting point of martensitic transformation(Ms) in Fe-C alloys;deducing and interpreting the relationship between transformation driving force and growth velocity of martensite by using the soliton theory;investigating the symmetrical characteristics of thermoelastic martensitic transformation in shape memory alloys by using group theory and establishing a mathematical model for computing the symmetrical distribution of thermoelastic martensite;founding the thermodynamics of martensitic and bainitic transformations in Cu-base alloys;and verifying the occurrence of bainitic transformation in ceramics as well.