A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study

doi:10.3390/ma11091599

IMR OpenIR

	A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study
	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)
	2018-09-01
发表期刊	MATERIALS
ISSN	1996-1944
卷号	11 期号:9 页码:12
摘要	The Arrhenius-type constitutive equation is mostly used to describe flow behaviors of material. However, no processing map has been constructed directly according to it. In this study, a novel computational method was applied for establishing the processing map for Ti-6Al-4V alloy in the temperature and strain rate range of 800-1050 degrees C and 0.001-10 s(-1), respectively. The processing map can be divided into four domains according to its graphic features. Among the four domains, the optimal domain is in the temperature and strain rate range of 850-925 degrees C and 0.001-0.1 s(-1), where peak efficiency eta is 0.54 and the main microstructural evolution is DRX (dynamic recrystallization). When the alloy is processed in the alpha + beta phase field, the temperature and strain rate range of 800-850 degrees C and 3-10 s(-1) should be avoided, where instability parameter sigma is negative and the microstructural feature is flow localization. When the alloy is processed in the beta phase field, DRV (dynamic recovery) and slight DRX of beta phase is the main microstructural characteristics in the range of 1000-1050 degrees C and 0.001-0.02 s(-1). However, flow localization of phase is the main microstructural feature in the range of 1000-1050 degrees C and 1-10 s(-1), which should be avoided.
关键词	Ti-6Al-4V alloy hot deformation processing map microstructure
DOI	10.3390/ma11091599
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000446395200115
出版者	MDPI
引用统计	被引频次：10[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/321006/129960
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, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Hu, Ming,Dong, Limin,Zhang, Zhiqiang,et al. A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study[J]. MATERIALS,2018,11(9):12.
APA	Hu, Ming,Dong, Limin,Zhang, Zhiqiang,Lei, Xiaofei,Yang, Rui,&Sha, Yuhui.(2018).A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study.MATERIALS,11(9),12.
MLA	Hu, Ming,et al."A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study".MATERIALS 11.9(2018):12.