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Simultaneous enhancement of strength and ductility of body-centered cubic TiZrNb multi-principal element alloys via boron-doping

文献类型：期刊论文

作者Pang, Jingyu1,2; Zhang, Hongwei1,3; Zhang, Long1,3; Zhu, Zhengwang1,3; Fu, Huameng1,3; Li, Hong1,3; Wang, Aimin1,3; Li, Zhengkun1,3; Zhang, Haifeng1,3
刊名JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
出版日期2021-07-10
卷号78页码:74-80
ISSN号1005-0302
关键词Boron-doping TiZrNb Grain refinement Strain-hardening capacity Deformation mechanism
DOI10.1016/j.jmst.2020.10.043
通讯作者Zhang, Hongwei(hongweizhang@imr.ac.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn)
英文摘要Body-centered cubic (BCC) multi-principal element alloys (MPEAs) have intrinsic high strength but poor ductility, which greatly limits their potential applications. Here we present the boron-doping strategy to enhance the strength and ductility of TiZrNb MPEAs simultaneously. The yield strength and ductility of the TiZrNb MPEA with boron addition of 500 ppm are increased by 19.0 % and 48.7 % compared to the boron-free TiZrNb MPEA, respectively. Boron-doping induced high efficiency in grain refinement from similar to 96.0 mu m to similar to 16.2 mu m is the main factor for strengthening. Dislocation dominated deformation mechanism involving cross slip and dislocation pining in the TiZrNb containing 500 ppm boron serves to enhance the strain-hardening capacity, resultant the enhancement of ductility from 7.8 % to 11.6 %. While the planar slip of dislocations is the dominated deformation mechanism for the boron-free TiZrNb. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目National Key Research and Development Program[2018YFB0703402] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Liao Ning Revitalization Talents Program[XLYC1802078] ; Liao Ning Revitalization Talents Program[XLYC1807062] ; Liaoning Key Research and Development Program[2020JH2/10100013]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者JOURNAL MATER SCI TECHNOL
WOS记录号WOS:000652023600007
资助机构National Key Research and Development Program ; Chinese Academy of Sciences ; Liao Ning Revitalization Talents Program ; Liaoning Key Research and Development Program
源URL[http://ir.imr.ac.cn/handle/321006/161464]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhang, Hongwei; Zhang, Haifeng
作者单位1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Ji Hua Lab Foshan, Foshan, Peoples R China
推荐引用方式
GB/T 7714		 Pang, Jingyu,Zhang, Hongwei,Zhang, Long,et al. Simultaneous enhancement of strength and ductility of body-centered cubic TiZrNb multi-principal element alloys via boron-doping[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,78:74-80.
APA Pang, Jingyu.,Zhang, Hongwei.,Zhang, Long.,Zhu, Zhengwang.,Fu, Huameng.,...&Zhang, Haifeng.(2021).Simultaneous enhancement of strength and ductility of body-centered cubic TiZrNb multi-principal element alloys via boron-doping.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,78,74-80.
MLA Pang, Jingyu,et al."Simultaneous enhancement of strength and ductility of body-centered cubic TiZrNb multi-principal element alloys via boron-doping".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 78(2021):74-80.

入库方式： OAI收割

来源：金属研究所

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