Microstructure and Crystallography of α Phase Nucleated Dynamically during Thermo-Mechanical Treatments in Metastable β Titanium Alloy

被引：15
作者：
Fan, Jiangkun [1 ,2 ,3 ]
Li, Jinshan [1 ]
Zhang, Yudong [2 ,3 ]
Kou, Hongchao [1 ]
Germain, Lionel [2 ,3 ]
Siredey-Schwaller, Nathalie [2 ,3 ]
Esling, Claude [2 ,3 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
[2] Univ Lorraine, Lab Etud Microstruct & Mecan Mat LEM3, CNRS 7239, F-57045 Metz, France
[3] Univ Lorraine, Lab Excellence Design Alloy Met Low MAss Struct D, F-57045 Metz, France
来源：
ADVANCED ENGINEERING MATERIALS | 2017年 / 19卷 / 07期
基金：
中国国家自然科学基金;
关键词：
BURGERS ORIENTATION RELATIONSHIP; GRAIN-BOUNDARY ALPHA; VARIANT SELECTION; HOT DEFORMATION; TI-6AL-4V ALLOY; STRAIN-RATE; EVOLUTION; BEHAVIOR; RECRYSTALLIZATION; TRANSFORMATION;
D O I：
10.1002/adem.201600859
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The alpha phase nucleated dynamically during the thermo-mechanical coupling process in titanium alloy is really interesting but difficult to sufficiently ascertain. In the present work, the phase nucleation behavior, the orientation relationship between / as well as the phase transformation kinetics during hot deformation of Ti-5553 alloy were investigated in-depth. Results reveal that the necklace microstructure formed. The Burgers orientation relationship between / phases has been destroyed gradually. The beta -> alpha phase transformation is obviously retarded during the hot compression due to the competitive effect of softening process (dynamic recovery/recrystallization). These results could provide valuable reference for process optimization and the microstructural evolution controlling.
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页数：11
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