Microscopic Phase Field Study of the Spinodal Decomposition in Fe-Mo Alloys

作     者：朱景川 赵荣达 ZHU Jingchuan,ZHAO Rongda,LAI Zhonghong,LIU Yong(School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China)

作者机构：School of Materials Science and EngineeringHarbin Institute of Technology 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2009年第24卷第S1期

页      面：9-12页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：spinodal decomposition phase field Fe-Mo alloys atomic-size difference 

摘      要：The spinodal decomposition in Fe-Mo alloys is studied by microscopic phase field method based on atomic *** results show that critical temperature of spinodal decomposition increases with the increment of Mo content,up to a maximum value of 1340 K at the Mo content of 50%.The spinodal decomposition shows a maximum rate at the Mo content of 50% for different Fe-Mo *** with the interconnected microstructure without considering elastic strain energy,the microstructure arrayed alternatively along the elastic soft direction of [01] and [10] is obtained under the effects of elastic strain energy,which will changes into a special macrolattice structure during subsequent coarsening *** coarsening of microstructure is restrained by elastic interaction generated by atomic-size difference,and a larger atomic-size difference induces a stronger restraining effect.