Evolution of coordination between α and /3 phases for two-phase titanium alloy during hot working

被引:18
作者
Xu, Jian-wei [1 ,2 ,3 ]
Zeng, Wei-dong [1 ,2 ,3 ]
Zhou, Da-di [1 ,2 ,3 ]
He, Sheng-tong [1 ,2 ,3 ]
Jia, Run-chen [1 ,2 ,3 ]
机构
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, Shaanxi Key Lab High Performance Precis Forming T, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Def Technol Innovat Ctr Precis Forging & Ring Rol, Sch Mat Sci & Engn, Xian 710072, Peoples R China
[3] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
基金
中国国家自然科学基金;
关键词
coordination ability; titanium alloy; orientation relationship; globularization; recrystallization; DYNAMIC GLOBULARIZATION KINETICS; TI-17; ALLOY; CRYSTALLOGRAPHIC ORIENTATION; MICROSTRUCTURE EVOLUTION; DEFORMATION-BEHAVIOR; HEAT-TREATMENT; MECHANISMS; BETA; TRANSFORMATION; COMPRESSION;
D O I
10.1016/S1003-6326(21)65740-0
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The evolution of coordination between alpha and /3 phases for a two-phase titanium alloy was investigated. For this purpose, hot compression and heat treatment under different conditions were carried out. The results show that the ability of coordinated deformation between alpha and /3 phases can influence uniformity of microstructure evolution. Specifically, alpha phase maintains the lamellar structure and /3 phase has a low degree of recrystallization when the ability of coordinated deformation is good. In this case, alpha and /3 phases still maintain the BOR (Burgers orientation relationship), and their interface relationship is not destroyed even at large deformation. Both of the deformation extent of alpha lamellae and recrystallization degree of /3 phase increase with the decline of ability of coordinated deformation. The alpha phase only maintains the BOR with /3 phase on one side, while the uncoordinated rotation with the /3 phase on the other side occurs within 10 degrees. The alpha and /3 phases rotate asynchronously when ability of coordinated deformation is poor. The degree of interface dislocation increases, and alpha and /3 phases deviate from the BOR.
引用
收藏
页码:3428 / 3438
页数:11
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