Microstructure evolution of Ti14 alloy during isothermal process

被引：0
|
作者：
Wang, Hui [1 ]
Chen, Yongnan [1 ]
Wei, Jianfeng [1 ]
Zhao, Yongqing [2 ]
Qu, Kepeng [1 ]
机构：
[1] State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
[2] Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China
来源：
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2009年 / 38卷 / 09期
关键词：
Grain boundaries - Isotherms - Titanium alloys - Copper alloys - Microstructure;
D O I：
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学科分类号：
摘要：
Microstructure evolution of Ti14 (α+Ti2Cu) alloy during isothermal process at different semi-solid temperatures was researched. It is found that both the semi-solid temperature and holding time would affect the morphology of grain boundary and the grain size. The grains grow obviously and the grain's shape becomes globular with increasing the holding time, the distribution of liquid on grain boundary changes from discontinuous to continuous to form a latticed structure finally. According to the statistic analysis of experimental data, the grain growth index is 0.88 and 0.97 at 1000C and 1050C, respectively, indicating that the rising of isothermal temperature would accelerated the microstructure evolution. Copyright © 2009, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.
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页码：1533 / 1536
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