中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 金属研究所
  3. 中国科学院金属研究所
A Novel BCC/B2 Structural Nb38Ti35Al15V6Cr4(TaHfMoW)2 Refractory High-Entropy Alloy with Excellent Specific Yield Strength-Plasticity Synergy

文献类型：期刊论文

作者Liu, Hongbin1,2; Xing, Zhenqiang2; Yang, Yitong2; Pang, Jingyu2,3; Li, Wen1; Zhu, Zhengwang4; Zhang, Long2; Wang, Aimin2; Zhang, Haifeng4; Zhang, Hongwei2
刊名ACTA METALLURGICA SINICA-ENGLISH LETTERS
出版日期2025-01-13
页码11
关键词Refractory high entropy alloy B2 phase Microstructure Mechanical property Deformation mechanism
ISSN号1006-7191
DOI10.1007/s40195-024-01805-x
通讯作者Pang, Jingyu(jypang17s@imr.ac.cn) ; Li, Wen(liwen@sylu.edu.cn) ; Zhang, Hongwei(hongweizhang@imr.ac.cn)
英文摘要Refractory high-entropy alloys (RHEAs) stand as promising candidates for the development of a new generation of high-temperature materials due to their exceptional mechanical properties. However, the inherent low ductility and high density of RHEAs have hindered their widespread adoption in industrial applications. In this study, an Nb38Ti35Al15V6Cr4(TaHfMoW)(2) RHEA with a BCC/B2 dual-phase structure is successfully developed. The RHEA exhibits excellent specific yield strength of 162.4 MPag(-1)cm(3) and 84.3 MPag(-1)cm(3) at room temperature (RT) and 800 degrees C, respectively. It was found that the pinning effect of the B2 phase induces a gradual transition in dislocation slip mode from planar slip to cross slip, homogenizing the plastic flow and resulting in excellent compression plasticity (epsilon > 50%). Additionally, the B2 phase endows the alloy with excellent yield strength at high temperatures by precipitation strengthening. Moreover, the dominated a/2 < 111 > type dislocation contributes to the alloy's superior plasticity at high temperatures.
资助项目Chinese Academy of Sciences[ZDBS-LY-JSC023] ; National Natural Science Foundation of China[52404370] ; Natural Science Foundation of Liaoning Province[2023-BS-012] ; Youth Innovation Promotion Association CAS[2021188] ; IMR Innovation Fund[2023-PY16] ; Guangdong Basic and Applied Basic Research Foundation[2023A1515111060]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001397167900001
出版者CHINESE ACAD SCIENCES, INST METAL RESEARCH
资助机构Chinese Academy of Sciences ; National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; Youth Innovation Promotion Association CAS ; IMR Innovation Fund ; Guangdong Basic and Applied Basic Research Foundation
源URL  
专题金属研究所_中国科学院金属研究所
通讯作者Pang, Jingyu; Li, Wen; Zhang, Hongwei
作者单位1.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
3.Foshan Sinotech Ind Technol Res Inst, Foshan 528000, Peoples R China
4.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Hongbin,Xing, Zhenqiang,Yang, Yitong,et al. A Novel BCC/B2 Structural Nb38Ti35Al15V6Cr4(TaHfMoW)2 Refractory High-Entropy Alloy with Excellent Specific Yield Strength-Plasticity Synergy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2025:11.
APA Liu, Hongbin.,Xing, Zhenqiang.,Yang, Yitong.,Pang, Jingyu.,Li, Wen.,...&Zhang, Hongwei.(2025).A Novel BCC/B2 Structural Nb38Ti35Al15V6Cr4(TaHfMoW)2 Refractory High-Entropy Alloy with Excellent Specific Yield Strength-Plasticity Synergy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,11.
MLA Liu, Hongbin,et al."A Novel BCC/B2 Structural Nb38Ti35Al15V6Cr4(TaHfMoW)2 Refractory High-Entropy Alloy with Excellent Specific Yield Strength-Plasticity Synergy".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2025):11.

入库方式： OAI收割

来源：金属研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。