Influence of thermal exposure on the tensile properties and microstructures of Ti60 titanium alloy

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	Influence of thermal exposure on the tensile properties and microstructures of Ti60 titanium alloy
	W. J. Jia; W. D. Zeng; J. R. Liu; Y. G. Zhou; Q. J. Wang
	2011
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	530 页码:511-518
摘要	The bimodal and lamellar microstructures of Ti60 alloy were obtained by different forging processes. The tensile tests were performed at room temperature for specimens before and after thermal exposure. The results show that the bimodal microstructure exhibits the higher ductility than that of the lamellar microstructure under all conditions. After thermal exposure, both of the strength and ductility decrease for all the specimens with alpha-case. However, when the alpha-case was removed before testing, both of strength and ductility increase compared with the specimens with alpha-case. The loss of ductility is mainly attributed to the precipitation of alpha(2) phase during exposure. The alpha-case formation during thermal exposure also contributes to the changes in tensile properties. The fracture behavior of Ti60 alloy is changed after thermal exposure. The fracture mode is ductile for unexposed specimens with bimodal microstructure. However, the quasi-cleavage fracture is the predominant fracture mode for all exposed specimens. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[jia, weiju; zeng, weidong; zhou, yigang] nw polytech univ, state key lab solidificat proc, sch mat sci & engn, xian 710072, peoples r china. [liu, jianrong; wang, qingjiang] chinese acad sci, inst met res, shenyang 110016, peoples r china.;zeng, wd (reprint author), nw polytech univ, state key lab solidificat proc, sch mat sci & engn, xian 710072, peoples r china;zengwd@nwpu.edu.cn
关键词	Titanium Alloy Thermal Exposure Tensile Property Silicide High-temperature Stability Oxidation Behavior
URL	查看原文
WOS记录号	WOS:000298311100065
引用统计	被引频次：54[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30417
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. J. Jia,W. D. Zeng,J. R. Liu,et al. Influence of thermal exposure on the tensile properties and microstructures of Ti60 titanium alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2011,530:511-518.
APA	W. J. Jia,W. D. Zeng,J. R. Liu,Y. G. Zhou,&Q. J. Wang.(2011).Influence of thermal exposure on the tensile properties and microstructures of Ti60 titanium alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,530,511-518.
MLA	W. J. Jia,et al."Influence of thermal exposure on the tensile properties and microstructures of Ti60 titanium alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 530(2011):511-518.