徐祖耀院士的学术贡献

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

论述了徐祖耀院士在马氏体相变、贝氏体相变及形状记忆材料方面的学术贡献。其中包括:揭示了无扩散马氏体相变中存在间隙原子(或离子)的扩散;完善了铁合金马氏体相变的热力学;解决了计算Fe-C合金相变开始温度(Ms)的难题;以孤立子理念演算和阐释了相变驱动力与马氏体长大速率之间的关系;以群论研究了形状记忆合金热弹性马氏体相变的对称性并建立了计算热弹性马氏体对称分布的数学模型;创建了铜基合金马氏体相变和贝氏体相变热力学;认证了陶瓷中存在贝氏体相变。

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.