<p>High-temperature deformation behavior and processing maps of a novel AlNbTi3VZr1.5 refractory high entropy alloy</p>

doi:10.1016/j.jallcom.2022.165220

CORC > 金属研究所 > 中国科学院金属研究所

	High-temperature deformation behavior and processing maps of a novel AlNbTi3VZr1.5 refractory high entropy alloy
	Yu, Zhenxiang 1,2,3; Xie, Bijun 1,3; Zhu, Zhengwang 1; Xu, Bin 1,3; Sun, Mingyue 1,3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2022-08-15
卷号	912 页码:11
关键词	Refractory high entropy alloy High-temperature deformation Stress-strain analysis Dynamic recrystallization Hot processing maps Weight
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2022.165220
通讯作者	Sun, Mingyue(mysun@imr.ac.cn)
英文摘要	High-temperature deformation behaviors of a nonequiatomic novel AlNbTi3VZr1.5 refractory high entropy alloy were studied. Hot compression tests were carried out at different temperatures ranging from 1100 to 1250 celcius and various strain rates from 0.001 to 1 s(-1). The true stress-true strain curves indicated obvious sharp drops in the flow stress after reaching peak stress. This may be caused by either dislocation unlocking from a substitutional solute atmosphere or destroying short-range ordered structures. Flow stress analysis was investigated by introducing the Arrhenius constitutive relation. The apparent activation energy (Q) for high-temperature deformation was calculated to be 228.1 kJ/mol. The processing maps show that the best processing window was determined at 1200-1250 ?degrees C and 10-0.75 to 1 s(-1). Detailed microstructure evolution characterization with EBSD analysis shows that the occurrence of discontinuous dynamic recrystallization along grain boundaries is the main softening mechanism of the AlNbTi3VZr1.5 RHEA during the hot compression deformation. The size and volume percentage of dynamically recrystallized grains increase as the Z parameter decreases. (C)& nbsp;2022 Published by Elsevier B.V.
资助项目	National Key Research and Development Program[2018YFA0702900] ; National Natural Science Foundation of China[52101061] ; National Natural Science Foundation of China[51774265] ; Postdoctoral Science Foundation of China[2020M681004] ; National Science and Technology Major Project of China[2019ZX06004010] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; LingChuang Research Project of China National Nuclear Corporation ; Program of CAS Interdisciplinary Innovation Team ; Youth Innovation Promotion Association, CAS
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000799769400003
资助机构	National Key Research and Development Program ; National Natural Science Foundation of China ; Postdoctoral Science Foundation of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LingChuang Research Project of China National Nuclear Corporation ; Program of CAS Interdisciplinary Innovation Team ; Youth Innovation Promotion Association, CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174185]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sun, Mingyue
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yu, Zhenxiang,Xie, Bijun,Zhu, Zhengwang,et al. High-temperature deformation behavior and processing maps of a novel AlNbTi3VZr1.5 refractory high entropy alloy [J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,912:11.
APA	Yu, Zhenxiang,Xie, Bijun,Zhu, Zhengwang,Xu, Bin,&Sun, Mingyue.(2022). High-temperature deformation behavior and processing maps of a novel AlNbTi3VZr1.5 refractory high entropy alloy .JOURNAL OF ALLOYS AND COMPOUNDS,912,11.
MLA	Yu, Zhenxiang,et al." High-temperature deformation behavior and processing maps of a novel AlNbTi3VZr1.5 refractory high entropy alloy ".JOURNAL OF ALLOYS AND COMPOUNDS 912(2022):11.