Mechanical behavior of thin CoCrFeNi high-entropy alloy sheet under laser shock peening

doi:10.1016/j.intermet.2022.107529

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Mechanical behavior of thin CoCrFeNi high-entropy alloy sheet under laser shock peening
	Dong, J. L.2; Wu, X. Q.2; Huang, C. G.1
刊名	INTERMETALLICS
	2022-05-01
卷号	144 页码:6
关键词	High-entropy alloy Mechanical properties Laser shock peening Grain refinement Microstructure evolution
ISSN号	0966-9795
DOI	10.1016/j.intermet.2022.107529
通讯作者	Wu, X. Q.(wuxianqian@imech.ac.cn)
英文摘要	It is a challenge to optimize the mechanical performance of high entropy alloys (HEAs). Here, we obtain yield strength enhancement along with considerable tensile ductility of CoCrFeNi HEA by laser shock peening (LSP). The surface hardness of the material is also increased significantly by 40% after LSP. Based on microstructure analysis, it is observed that the grain refinement and the mixed deformation mode of dislocation slip and deformation twin are the main strengthening mechanisms after being treated by LSP. This study demonstrates an effective method for tailoring the mechanical properties of HEAs.
资助项目	National Natural Science Foundation of China[11772347] ; Science Challenge Project[XDB22040303] ; Strategic Priority Research Program of the Chinese Academy of Sciences ; [TZ2018001] ; [XDB22040302]
WOS关键词	GRAIN-REFINEMENT MECHANISM ; HALL-PETCH RELATIONSHIP ; MICROSTRUCTURE ; DEFORMATION ; PLASTICITY ; STRESS ; DESIGN ; PLASMA ; WAVES
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000795914500001
资助机构	National Natural Science Foundation of China ; Science Challenge Project ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89498]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Wu, X. Q.
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Dong, J. L.,Wu, X. Q.,Huang, C. G.. Mechanical behavior of thin CoCrFeNi high-entropy alloy sheet under laser shock peening[J]. INTERMETALLICS,2022,144:6.
APA	Dong, J. L.,Wu, X. Q.,&Huang, C. G..(2022).Mechanical behavior of thin CoCrFeNi high-entropy alloy sheet under laser shock peening.INTERMETALLICS,144,6.
MLA	Dong, J. L.,et al."Mechanical behavior of thin CoCrFeNi high-entropy alloy sheet under laser shock peening".INTERMETALLICS 144(2022):6.