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Hot Workability and Microstructural Evolution of Powder Metallurgy Ti-22Al-24Nb-0.5Mo Alloy during Hot Compression
Yu, Zichao1; Zhang, Hua1; Shao, Zhengjie1; Zhang, Shangzhou1; Ruan, Jingjing1; Wang, Lifei2; Zhou, Xin1; Zhu, Lilong1; Xu, Lei3
Corresponding AuthorZhang, Hua(zhanghua@ytu.edu.cn)
2022-06-07
Source PublicationJOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN1059-9495
Pages9
AbstractIn 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.
Keywordhot workability hot processing map microstructure Ti alloy
Funding OrganizationNational 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
DOI10.1007/s11665-022-07007-9
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000807317000001
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174312
Collection中国科学院金属研究所
Corresponding AuthorZhang, Hua
Affiliation1.Yantai Univ, Inst Adv Studies Precis Mat, Yantai 264005, Peoples R China
2.Taiyuan Univ Technol, Dept Mat Sci & Engn, Taiyuan 030024, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
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.
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