Mechanical anisotropy in additively manufactured laminated high-entropy alloys: The role of interface geometry

doi:10.1016/j.jmst.2024.05.011

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Mechanical anisotropy in additively manufactured laminated high-entropy alloys: The role of interface geometry
	Bai, Yunjian 3,4; Yang, Cheng 2,3; Liu, Zishang 3,4; Jiang, Quanyu 3,4; Wang, Yun-Jiang 2,3; Zhang, Kun 1,3,4; Liu, Yizhe 3,4; Li, Yadong 3,4; Wei, Bingchen 1,3,4
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2025-03-01
卷号	210 页码:72-85
关键词	Laminated HEAs Additive manufacturing Anisotropy Interface orientation
ISSN号	1005-0302
DOI	10.1016/j.jmst.2024.05.011
通讯作者	Zhang, Kun(zhangkun@imech.ac.cn) ; Wei, Bingchen(weibc@imech.ac.cn)
英文摘要	The remarkable mechanical properties exhibited by laminated structures have generated significant interest in the realm of additively manufactured laminated high-entropy alloys (HEAs). Despite this burgeoning interest, the nexus between process, structure, and properties within laminated HEAs remains largely uncharted. There is a vast space for investigating the effect of the typical heterogeneous interface on the macroscopic mechanical properties. This study focuses on the influence of the characteristic heterogeneous interface on macroscopic mechanical properties of laminated HEAs, particularly anisotropy. Using the 3D-printed Fe50 Mn30 Co10 Cr10 -CoCrNi HEA as a model, we investigate the impact of interface geometry on mechanical characteristics. Tensile tests show that the reduced interface spacing increases yield strength. This laminated HEA displays significant anisotropy in strength and ductility, depending on the loading direction relative to the interface. Electron microscopic observations suggest that finer layer spacing enhances interface and dislocation strengthening, increasing yield strength. Anisotropic behaviors are confirmed to be mediated by interface orientation, explained in terms of deformation compatibility and crack development at the interface. This research offers fundamental insights into the relationship between heterogeneous interfaces and the mechanical properties in laminated HEAs. The knowledge is vital for designing, fabricating, and optimizing laminated HEAs through additive manufacturing, advancing their engineering applications. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Natural Science Foundation of China[12272392] ; National Natural Science Foundation of China[11790292] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040303] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022020]
WOS关键词	SHORT-RANGE ORDER ; STRENGTH ; DEFORMATION ; MICROSTRUCTURE ; COMPONENTS ; STRESS ; STEEL
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:001255517500001
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/95817]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Zhang, Kun; Wei, Bingchen
作者单位	1.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Key Lab Micrograv, Natl Micrograv Lab, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Bai, Yunjian,Yang, Cheng,Liu, Zishang,et al. Mechanical anisotropy in additively manufactured laminated high-entropy alloys: The role of interface geometry[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,210:72-85.
APA	Bai, Yunjian.,Yang, Cheng.,Liu, Zishang.,Jiang, Quanyu.,Wang, Yun-Jiang.,...&Wei, Bingchen.(2025).Mechanical anisotropy in additively manufactured laminated high-entropy alloys: The role of interface geometry.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,210,72-85.
MLA	Bai, Yunjian,et al."Mechanical anisotropy in additively manufactured laminated high-entropy alloys: The role of interface geometry".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 210(2025):72-85.