Grain Growth Behavior of Ti-1300 Alloy

被引：0
作者：
Wan Mingpan [1 ,2 ]
Zhao Yongqing [3 ]
Zeng Weidong [1 ]
Bian Hongyan [2 ]
Cai Gang [2 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
[2] Guizhou Univ, Guiyang 550025, Peoples R China
[3] Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2015年 / 44卷 / 04期
关键词：
Ti-1300; alloy; grain growth exponents; grain size; BETA-TITANIUM ALLOYS; DEFORMATION-BEHAVIOR;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Grain growth behavior and its kinetics during the solution treatment process of Ti-1300 alloy have been investigated. The results show that the insoluble alpha leads to slight variation of grain size below the beta transus temperature of Ti-1300 alloy, and the grain growth become rapid above the beta transus temperature of Ti-1300 alloy. The grain growth kinetics at temperatures from 840 to 950 degrees C indicates that the variation of average beta grain size with solution temperature in Ti-1300 alloy obeys the following relationship: D=1.13 x10(10)exp(-2.1x10(4)/T). The activation energy value for grain growth in Ti-1300 alloy is 350 kJ/mol. It means that the grain growth mechanism is a self-diffusion-controlling process. When solution treated at 840, 870 and 900 degrees C, the grain growth exponents (eta) are 0.31, 0.55 and 0.56, respectively. The values of eta increase with the raise of solution temperature.
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页码：908 / 911
页数：4
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