On Temperature and Strain Rate Dependent Strain Localization Behavior in Ti-6.5Al-3.5Mo-1.5Zr-0.3Si Alloy

被引:0
作者
Zhang, B. [1 ]
Lei, L. M. [2 ]
Jiang, X. L. [1 ,3 ]
Song, Z. M. [3 ]
Huang, X. [2 ]
Zhang, G. P. [3 ]
机构
[1] Northeastern Univ, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China
[2] Beijing Inst Aeronaut Mat, Titanium Alloys Lab, Beijing 100095, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
基金
中国国家自然科学基金;
关键词
Titanium alloy; Hot working; Temperature; Strain rate; Shear band; TC11; TITANIUM-ALLOY; HOT-WORKING; DEFORMATION-BEHAVIOR; MICROSTRUCTURAL EVOLUTION; FLOW; TI-6AL-4V; COMPRESSION;
D O I
10.1016/j.jmst.2012.12.004
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Deformation behaviors of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloys with alpha/beta lamellar structure were investigated systematically at different temperatures from room temperature to 950 degrees C and different strain rates. Results reveal that when the deformation temperature is higher than a critical temperature of 600 degrees C, an evident transition of deformation behavior from localized shear banding to alpha/beta lamella kinking, flow softening and temperature/strain rate-dependent peak flow stress occurred in the alloy. The critical conditions for the occurrence of internal cracking and strain localization behavior associated with temperature and strain rate were determined.
引用
收藏
页码:273 / 278
页数:6
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