On Temperature and Strain Rate Dependent Strain Localization Behavior in Ti-6.5Al-3.5Mo-1.5Zr-0.3Si Alloy
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2013年第3期
论文作者：B.Zhang L.M.Lei X.L.Jiang Z.M.Song X.Huang G.P.Zhang
文章页码：273 - 278
摘 要：<正>Deformation behaviors of Ti-6.5AI-3.5Mo- 1.5Zr-0.3Si alloys withα/βlamellar structure were investigated systematically at different temperatures from room temperature to 950℃and different strain rates.Results reveal that when the deformation temperature is higher than a critical temperature of 600℃,an evident transition of deformation behavior from localized shear banding toα/βlamella 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.
B.Zhang1，L.M.Lei2,3，X.L.Jiang1,4，Z.M.Song4，X.Huang2，G.P.Zhang4
1. Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education),Northeastern University2. Titanium Alloys Laboratory,Beijing Institute of Aeronautical Materials3. AVIC commercial Aircraft Engine Co.,Ltd.4. Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences
摘 要：<正>Deformation behaviors of Ti-6.5AI-3.5Mo- 1.5Zr-0.3Si alloys withα/βlamellar structure were investigated systematically at different temperatures from room temperature to 950℃and different strain rates.Results reveal that when the deformation temperature is higher than a critical temperature of 600℃,an evident transition of deformation behavior from localized shear banding toα/βlamella 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.
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