Effects of multi-pass drawing strain and heat treatment on microstructure, texture and mechanical properties of Ti-6Al-4V alloy

doi:10.1016/j.msea.2019.04.087

IMR OpenIR

	Effects of multi-pass drawing strain and heat treatment on microstructure, texture and mechanical properties of Ti-6Al-4V alloy
	Hu, Ming 1,2; Dong, Limin 2; Zhang, Zhiqiang 2; Lei, Xiaofei 2; Yang, Rui 2; Sha, Yuhui 1
通讯作者	Dong, Limin(lmdong@imr.ac.cn)
	2019-05-29
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	757 页码:70-83
摘要	In this study, a rolled Ti-6Al-4V alloy bar was processed by multi-pass drawing till 60% strain. The drawn state specimens were annealed and solid solution aged. The microstructure evolution characteristics, texture evolution features and mechanical properties changes were systematically investigated. During drawing, alpha grains were gradually elongated and beta( )grains were split. The alpha phase developed a fiber texture with < 01<(1)over bar>0 > parallel to the drawing direction, and the texture intensity increased with increasing the strain. The yield strength and ultimate tensile strength increased up to 1164 MPa and 1235 MPa respectively with increasing the strain. Annealing resulted in the recovery and the recrystallization of alpha grains and globularization of partial beta grains. The intensity of < 01<(1)over bar>0 > fiber texture decreased compared to the drawn state specimens. The tensile strength decreased and the ductility increased compared to the drawn state specimens and the strength followed the Hall-Petch relationship. After solid solution aging heat treatment, the microstructure consisted of primary alpha grains and transformed beta grains. The tensile strength was obviously higher than the annealed state due to smaller alpha plates thickness and dispersion strengthening effects. Refinement of transformed beta grains and alpha plates thickness led to the higher tensile strength in the higher strain specimens.
关键词	Ti-6Al-4V alloy Multi-pass drawing Microstructure Texture Mechanical properties
DOI	10.1016/j.msea.2019.04.087
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000470944600008
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：11[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/321006/133987
专题	中国科学院金属研究所
通讯作者	Dong, Limin
作者单位	1.Northeastern Univ, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, 72 Shenhe Dist, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Hu, Ming,Dong, Limin,Zhang, Zhiqiang,et al. Effects of multi-pass drawing strain and heat treatment on microstructure, texture and mechanical properties of Ti-6Al-4V alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,757:70-83.
APA	Hu, Ming,Dong, Limin,Zhang, Zhiqiang,Lei, Xiaofei,Yang, Rui,&Sha, Yuhui.(2019).Effects of multi-pass drawing strain and heat treatment on microstructure, texture and mechanical properties of Ti-6Al-4V alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,757,70-83.
MLA	Hu, Ming,et al."Effects of multi-pass drawing strain and heat treatment on microstructure, texture and mechanical properties of Ti-6Al-4V alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 757(2019):70-83.