| Simultaneous enhancement of strength and ductility of body-centered cubic TiZrNb multi-principal element alloys via boron-doping | |
| 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 | |
| Corresponding Author | Zhang, Hongwei(hongweizhang@imr.ac.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn) |
| 2021-07-10 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 78Pages:74-80 |
| Abstract | 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. |
| Keyword | Boron-doping TiZrNb Grain refinement Strain-hardening capacity Deformation mechanism |
| Funding Organization | National Key Research and Development Program ; Chinese Academy of Sciences ; Liao Ning Revitalization Talents Program ; Liaoning Key Research and Development Program |
| DOI | 10.1016/j.jmst.2020.10.043 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000652023600007 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/161465 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Hongwei; Zhang, Haifeng |
| Affiliation | 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 |
| Recommended Citation 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. |
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