High-temperature deformation behavior of Ti60 titanium alloy

IMR OpenIR

	High-temperature deformation behavior of Ti60 titanium alloy
	W. J. Jia; W. D. Zeng; Y. G. Zhou; J. R. Liu; Q. J. Wang
	2011
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	528 期号:12 页码:4068-4074
摘要	Isothermal compressions of near-alpha Ti60 alloy were carried out on a Gleeble-3800 simulator in the temperature range of 960-1110 degrees C and strain rate range of 0.001-10.0 s(-1). The high-temperature deformation behavior was characterized based on an analysis of the stress-strain behavior, kinetics and processing map. The flow stress behavior revealed greater flow softening in the two-phase field compared with that of single-phase field. In two-phase field, flow softening was caused by break-up and globularization of lamellar a as well as deformation heating during deformation. While in the single-phase field, flow softening was caused by dynamic recovery and recrystallization. Using hyperbolic-sine relationships for the flow stress data, the apparent activation energy was determined to be 653 kJ/mol and 183 kJ/mol for two-phase field and single-phase field, respectively. The processing map exhibited two instability fields: 960-980 degrees C at 0.3-10 s(-1) and 990-1110 degrees C at 0.58-10 s(-1). These fields should be avoided due to the flow localization during the deformation of Ti60 alloy. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[jia, weiju; zeng, weidong; zhou, yigang] nw polytech univ, sch mat, state key lab solidificat proc, 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, sch mat, state key lab solidificat proc, xian 710072, peoples r china;diana19811025@hotmail.com zengwd@nwpu.edu.cn
关键词	Titanium Alloy Compression Test Constitutive Equation Processing Map Hot-working Microstructural Evolution Ti-6al-4v Alloy Processing Map Flow Behavior Workability Compression Mechanism Imi834 Phase
URL	查看原文
WOS记录号	WOS:000289389400016
引用统计	被引频次：137[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/321006/30419
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,Y. G. Zhou,et al. High-temperature deformation behavior of Ti60 titanium alloy[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2011,528(12):4068-4074.
APA	W. J. Jia,W. D. Zeng,Y. G. Zhou,J. R. Liu,&Q. J. Wang.(2011).High-temperature deformation behavior of Ti60 titanium alloy.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,528(12),4068-4074.
MLA	W. J. Jia,et al."High-temperature deformation behavior of Ti60 titanium alloy".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 528.12(2011):4068-4074.