Computer Simulation of the Interphase Boundary Evolution in Ni_(75)Al_xV_(25-x) Alloy

作     者：YongshengLI ZhengCHEN YanliLU YongxinWANG 

作者机构：SchoolofMaterialsScienceandEngineeringNorthwesternPolytechnicalUniversityXi'an710072China SchoolofMaterialsScienceandEngineeringNorthwesternPolytechnicalUniversityXiran710072China//StateKeyLaboratoryofSolidificationProcessingNorthwesternPolytechnicalUniversityXi'an710072China SchoolofMaterialsScienceandEngineeringNorthwesternPolytechnicalUniversityXi'an710072China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2005年第21卷第3期

页      面：395-398页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This work was financially supported by the National Nat-ural Science Foundation of China(Grant No.50071046) the Hi-tech Research and Development Program of China(Grant No.2002AA331051) 

主　　题：Microscopic phase-field Atomic-scale Interphase boundary Simulation Ni75AlxV25-x 

摘      要：The interphase boundary evolution of ordered phase in Ni75AlxV25-x alloy during precipitation was simulated on atomic-scale based on the microscopic phase-field dynamic model. The results show that the second phase precipitated from the interphase boundary formed by the first phase and the disordered matrix at high temperature, and from the interphase boundaries of the first phase at low temperature. L12 phase had obvious selective orientation when precipitated from the interphase boundaries of D022- L12 phase nucleated easily at the interphase boundaries formed by [10] and [01] directions of D022 projection along [001] direction, and grew easily at [10] direction. There was no the selective orientation when L12 phase precipitated from the interphase boundary formed by D022 and the disordered matrix. D022 phase had the selective orientation when precipitated from the interphase boundaries of L12, and grew along the [10] direction.