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

CORC > 金属研究所 > 中国科学院金属研究所

	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
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2019-05-29
卷号	757 页码:70-83
关键词	Ti-6Al-4V alloy Multi-pass drawing Microstructure Texture Mechanical properties
ISSN号	0921-5093
DOI	10.1016/j.msea.2019.04.087
通讯作者	Dong, Limin(lmdong@imr.ac.cn)
英文摘要	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.
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000470944600008
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/133982]
专题	金属研究所_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.