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

doi:10.1016/j.jmst.2020.10.043

IMR OpenIR

	Simultaneous enhancement of strength and ductility of body-centered cubic TiZrNb multi-principal element alloys via boron-doping
	Pang, Jingyu 1,2; Zhang, Hongwei 1,3; Zhang, Long 1,3; Zhu, Zhengwang 1,3; Fu, Huameng 1,3; Li, Hong 1,3; Wang, Aimin 1,3; Li, Zhengkun 1,3; Zhang, Haifeng 1,3
通讯作者	Zhang, Hongwei(hongweizhang@imr.ac.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn)
	2021-07-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	78 页码:74-80
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.
关键词	Boron-doping TiZrNb Grain refinement Strain-hardening capacity Deformation mechanism
资助者	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
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000652023600007
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：36[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/321006/161465
专题	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.