A design of Zr-rich body-centered cubic structured refractory complex concentrated alloy with outstanding tensile strength and ductility

doi:10.1016/j.msea.2023.145091

IMR OpenIR

	A design of Zr-rich body-centered cubic structured refractory complex concentrated alloy with outstanding tensile strength and ductility
	Zhou, Yongkang 1,2,3; Zeng, Shuai 2,3; Li, Huan 1,3; Zhang, Hongwei 1,3; Zhang, Haifeng 1,3; Zhu, Zhengwang 1,3
通讯作者	Zhu, Zhengwang(zwzhu@imr.ac.cn)
	2023-05-25
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	874 页码:8
摘要	Refractory complex concentrated alloys (RCCAs) have recently attracted much attention due to their superior properties. However, the lack of room temperature ductility and strain-hardening ability has become a major challenge to be addressed. In this work, a novel metastable Zr-rich RCCA of Zr45Ti15Nb30Ta10 (at.%) was designed and studied. The phase stability of the novel RCCA was investigated by annealing at 600, 800 and 1000 degrees C, and its influence on the mechanical properties was revealed by tensile testing. The as-cast samples show a dendritic body-center-cubic (BCC) microstructure with one crystalline lattice constant, which displayed a yield strength of 901 MPa and an elongation of 13.4%. When annealing at 600 and 800 degrees C, the Zr-rich BCC1 phase and Nb-Ta-rich BCC2 phase were identified to form. The samples annealed at 600 degrees C showed a yield strength of 913 MPa and an elongation of 10.4% but an enhanced strain hardening capacity with an average strain hardening exponent of similar to 0.88. This is attributed to the precipitated second phase hindering the movement of dislocations. The present work sheds light on developing novel RCCAs with high strength, high ductility, and considerable strain-hardening ability.
关键词	Refractory complex concentrated alloy Annealing Phase decomposition Mechanical properties
资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences
DOI	10.1016/j.msea.2023.145091
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52074257] ; Chinese Academy of Sciences[ZDBS-LY- JSC023]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001026017100001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：12[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/321006/178715
专题	中国科学院金属研究所
通讯作者	Zhu, Zhengwang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 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, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Yongkang,Zeng, Shuai,Li, Huan,et al. A design of Zr-rich body-centered cubic structured refractory complex concentrated alloy with outstanding tensile strength and ductility[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,874:8.
APA	Zhou, Yongkang,Zeng, Shuai,Li, Huan,Zhang, Hongwei,Zhang, Haifeng,&Zhu, Zhengwang.(2023).A design of Zr-rich body-centered cubic structured refractory complex concentrated alloy with outstanding tensile strength and ductility.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,874,8.
MLA	Zhou, Yongkang,et al."A design of Zr-rich body-centered cubic structured refractory complex concentrated alloy with outstanding tensile strength and ductility".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 874(2023):8.