Hot Workability and Microstructural Evolution of Powder Metallurgy Ti-22Al-24Nb-0.5Mo Alloy during Hot Compression

doi:10.1007/s11665-022-07007-9

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	Hot Workability and Microstructural Evolution of Powder Metallurgy Ti-22Al-24Nb-0.5Mo Alloy during Hot Compression
	Yu, Zichao 3; Zhang, Hua 3; Shao, Zhengjie 3; Zhang, Shangzhou 3; Ruan, Jingjing 3; Wang, Lifei 2; Zhou, Xin 3; Zhu, Lilong 3; Xu, Lei 1
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2022-06-07
页码	9
关键词	hot workability hot processing map microstructure Ti alloy
ISSN号	1059-9495
DOI	10.1007/s11665-022-07007-9
通讯作者	Zhang, Hua(zhanghua@ytu.edu.cn)
英文摘要	In this work, Ti-22Al-24Nb-0.5Mo alloy was processed by hot isostatic pressing and forging. The hot workability and microstructure evolution of forged alloy at temperature of 930-1050 degrees C and the strain rate of 0.001-1 s(-1) were investigated. The flow stress of forged alloy decreased with the increasing temperature and the decreasing strain rate. When the compression strain rate is greater than 0.1 s(-1), the stress-strain curves present multiple yield phenomenon. The apparent activation energy Q values of forged alloy in the (alpha(2)+O+B2) three-phase region and the (alpha(2)+B2) two-phase region are 727 and 571 KJ mol(-1), respectively. According to hot working map, there are no suitable processing zone in the three-phase region. There are two suitable processing zones (Domain I: 990-1030 degrees C and 0.005 s(-1); Domain II: above 1035 degrees C and 0.1-0.005 s(-1)) in the two-phase region, in which there are many dynamic recrystallized grains and the continuous dynamic recrystallization is the dominating dynamic recrystallization (DRX) mechanism. But the grains are severely deformed and the discontinuous dynamic recrystallization is activated in the instability zone.
资助项目	National Natural Science Foundation of China[U1810122] ; National Natural Science Foundation of China[U2106215] ; Yantai high-end talent introduction Double Hundred Plan (2021) ; Talent Training Program for Shandong Province Higher Educational Youth Innovative Teams (2019) ; Key Research and Development Program of Shanxi Province[201903D421076] ; Key Research and Development Program of Shanxi Province[201803D421086] ; Innovative Talents of Higher Education Institutions of Shanxi (2018) ; Natural Science Foundation of Shandong Province[ZR2019MEM012] ; Taishan Scholars Program of Shandong Province[tsqn201909081] ; Major Scientific and Technological Innovation Project in Shandong Province[2019JZZY010325] ; Central Government Guided Local Science and Technology Development Projects[YDZJSX2021A010]
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000807317000001
资助机构	National Natural Science Foundation of China ; Yantai high-end talent introduction Double Hundred Plan (2021) ; Talent Training Program for Shandong Province Higher Educational Youth Innovative Teams (2019) ; Key Research and Development Program of Shanxi Province ; Innovative Talents of Higher Education Institutions of Shanxi (2018) ; Natural Science Foundation of Shandong Province ; Taishan Scholars Program of Shandong Province ; Major Scientific and Technological Innovation Project in Shandong Province ; Central Government Guided Local Science and Technology Development Projects
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174311]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Hua
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Taiyuan Univ Technol, Dept Mat Sci & Engn, Taiyuan 030024, Peoples R China 3.Yantai Univ, Inst Adv Studies Precis Mat, Yantai 264005, Peoples R China
推荐引用方式 GB/T 7714	Yu, Zichao,Zhang, Hua,Shao, Zhengjie,et al. Hot Workability and Microstructural Evolution of Powder Metallurgy Ti-22Al-24Nb-0.5Mo Alloy during Hot Compression[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2022:9.
APA	Yu, Zichao.,Zhang, Hua.,Shao, Zhengjie.,Zhang, Shangzhou.,Ruan, Jingjing.,...&Xu, Lei.(2022).Hot Workability and Microstructural Evolution of Powder Metallurgy Ti-22Al-24Nb-0.5Mo Alloy during Hot Compression.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,9.
MLA	Yu, Zichao,et al."Hot Workability and Microstructural Evolution of Powder Metallurgy Ti-22Al-24Nb-0.5Mo Alloy during Hot Compression".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2022):9.