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Phase Decomposition and Elevated Temperature Mechanical Properties of Zr-Ti-Nb-Ta-Sn Complex Concentrated Alloy Annealed at Intermediate Temperatures

文献类型：期刊论文

作者Zhou, Yongkang1,2,3; Zeng, Shuai1,2,3; Zhu, Yuhui1,2,3; Zhao, Bowen1,2,3; Li, Huan1,2,3; Zhang, Hongwei1,3; Zhang, Haifeng1,3; Zhu, Zhengwang1,3
刊名METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
出版日期2022-08-26
页码12
ISSN号1073-5623
DOI10.1007/s11661-022-06774-3
通讯作者Zhu, Zhengwang(zwzhu@imr.ac.cn)
英文摘要Refractory complex concentrated alloys (RCCAs) have attracted much attention due to their unique design concept and mechanical properties at elevated temperatures. The researchers found that the RCCAs are thermally metastable and could decompose in certain temperature ranges. At present, the phase stability of these alloy systems is not completely clear. In this work, the phase stability of single-phase body-centered cubic (BCC) Zr46Ti13Nb26Ta10.5Sn4.5 alloy annealing between 600 degrees C and 1000 degrees C was evaluated, and the effects of phase decomposition on high-temperature mechanical properties were studied. Annealing at 1000 degrees C, it is unstable and forms a second-phase precipitate with BCC structure (termed as BCC2). After annealing at 600 degrees C to 800 degrees C, a new Zr-Sn-rich hexagonal-closed-packed (HCP) phase was formed. At high temperatures (1000 degrees C to 1200 degrees C), the "fishbone"-shaped GB precipitates can hinder the sliding of GBs and the intragranular precipitates hinder dislocation movement causing a significant increase in strength. These results indicate that the high-temperature mechanical properties of RCCAs can be improved by optimizing the microstructure by tuning the phase stability, which sheds light on designing new RCCAs with high performance.
资助项目National key research and development program[2018YFB0703402] ; National Natural Science Foundation of China[52074257] ; Chinese Academy of Sciences[ZDBS-LYJSC023]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者SPRINGER
WOS记录号WOS:000844930000001
资助机构National key research and development program ; National Natural Science Foundation of China ; Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/175022]  
专题金属研究所_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, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Yongkang,Zeng, Shuai,Zhu, Yuhui,et al. Phase Decomposition and Elevated Temperature Mechanical Properties of Zr-Ti-Nb-Ta-Sn Complex Concentrated Alloy Annealed at Intermediate Temperatures[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2022:12.
APA Zhou, Yongkang.,Zeng, Shuai.,Zhu, Yuhui.,Zhao, Bowen.,Li, Huan.,...&Zhu, Zhengwang.(2022).Phase Decomposition and Elevated Temperature Mechanical Properties of Zr-Ti-Nb-Ta-Sn Complex Concentrated Alloy Annealed at Intermediate Temperatures.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,12.
MLA Zhou, Yongkang,et al."Phase Decomposition and Elevated Temperature Mechanical Properties of Zr-Ti-Nb-Ta-Sn Complex Concentrated Alloy Annealed at Intermediate Temperatures".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2022):12.

入库方式： OAI收割

来源：金属研究所

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