Strategies for optimizing mechanical properties of refractory high entropy alloys induced by solid solution strengthening mechanism

doi:10.1016/j.msea.2024.147696

IMR OpenIR

	Strategies for optimizing mechanical properties of refractory high entropy alloys induced by solid solution strengthening mechanism
	Zhou, Yongkang 1,2,3; Liu, Xiaoya 2,3; Ch, Jingqi 2,3; Zhang, Haifeng 1,2,3; Zhu, Zhengwang 1,2,3
通讯作者	Zhu, Zhengwang(zhuzw@mail.neu.edu.cn)
	2025-02-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	923 页码:8
摘要	How to optimize the strength-plasticity matching of refractory high entropy alloys (RHEAs) by simple strategies has been widely discussed. Generally, the strengthening mechanism of RHEAs mainly comes from the solid solution strengthening (SSS) caused by atomic radius mismatch and modulus mismatch. However, excessive atomic radius mismatch can increase the distortion energy of the RHEA and decrease its plasticity. Therefore, we propose a strategy to enhance modulus mismatch without altering atomic radius mismatch, thereby improve the strength-plasticity of RHEAs. We selected the ZrTiNb system as the model and increased the modulus mismatch by adding Ta, resulting in a 23.8 % increase in strength and an 82.3 % increase in plasticity. More importantly, the addition of Ta can decrease the diffusion rate of elements within the RHEAs and serve to refine the grains. This provides a significant avenue for developing RHEAs with outstanding properties.
关键词	Refractory high entropy alloy Modulus mismatch Solid solution strengthening Mechanical property
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
DOI	10.1016/j.msea.2024.147696
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities[N2325008]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001392262300001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：2[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/321006/180801
专题	中国科学院金属研究所
通讯作者	Zhu, Zhengwang
作者单位	1.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, 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,Liu, Xiaoya,Ch, Jingqi,et al. Strategies for optimizing mechanical properties of refractory high entropy alloys induced by solid solution strengthening mechanism[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2025,923:8.
APA	Zhou, Yongkang,Liu, Xiaoya,Ch, Jingqi,Zhang, Haifeng,&Zhu, Zhengwang.(2025).Strategies for optimizing mechanical properties of refractory high entropy alloys induced by solid solution strengthening mechanism.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,923,8.
MLA	Zhou, Yongkang,et al."Strategies for optimizing mechanical properties of refractory high entropy alloys induced by solid solution strengthening mechanism".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 923(2025):8.