Tailoring mechanical properties of a CoCrNi medium-entropy alloy by controlling nanotwin-HCP lamellae and annealing twins

doi:10.1016/j.msea.2018.11.143

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院固体物理研究所

	Tailoring mechanical properties of a CoCrNi medium-entropy alloy by controlling nanotwin-HCP lamellae and annealing twins
	Deng, H. W.2,3; Xie, Z. M.3; Zhao, B. L.2,3; Wang, Y. K.2,3; Wang, M. M.2,3; Yang, J. F.3; Zhang, T.3; Xiong, Y.1; Wang, X. P.3; Fang, Q. F.3
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2019-01-28
卷号	744 期号:无页码:241-246
关键词	CoCrNi Medium-entropy alloy Nanotwin-HCP Annealing twins Strength Ductility
ISSN号	0921-5093
DOI	10.1016/j.msea.2018.11.143
英文摘要	The microstructure significantly influences the mechanical properties of metals and alloys. Herein, we present a novel approach to tailoring the mechanical properties of a CoCrNi medium-entropy alloy by controlling nanotwin-HCP lamellae and annealing twins. It has been observed that the dislocations, three-dimensional nanotwins and Lomer-Cottrell locks, induced by equal channel angular pressing, synergistically strengthened the CoCrNi alloy. The nanotwin-HCP composite lamellae, induced by post-deformation annealing at 500 degrees C, resulted in high strength of 1.5 GPa and a strain of 4.1%. A superior combination of high strength (similar to 1 GPa) and excellent ductility (similar to 45%) has been obtained by further decorating the microstructure through producing annealing twins in recrystallized micro-sized grains. The present study presents the strengthening mechanisms and provides a generic approach to obtain the desirable mechanical properties of the alloys via microstructural optimization.
资助项目	National Key Research and Development Program of China[2017YFA0402800] ; National Natural Science Foundation of China[11575241] ; National Natural Science Foundation of China[11735015] ; National Natural Science Foundation of China[51771184] ; National Natural Science Foundation of China[51801203] ; National Natural Science Foundation of China[51601189] ; National Natural Science Foundation of China[11674319] ; Natural Science Foundation of Anhui Province[1808085QE132] ; Open Project of State Key Laboratory of Environment friendly Energy Materials[18KFHG02]
WOS关键词	DEFORMATION ; MICROSTRUCTURE ; EVOLUTION ; BEHAVIOR ; STRESS
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000457510300027
资助机构	National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Natural Science Foundation of Anhui Province ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials ; Open Project of State Key Laboratory of Environment friendly Energy Materials
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/41704]
专题	合肥物质科学研究院_中科院固体物理研究所
通讯作者	Xie, Z. M.; Zhang, T.
作者单位	1.Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Deng, H. W.,Xie, Z. M.,Zhao, B. L.,et al. Tailoring mechanical properties of a CoCrNi medium-entropy alloy by controlling nanotwin-HCP lamellae and annealing twins[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,744(无):241-246.
APA	Deng, H. W..,Xie, Z. M..,Zhao, B. L..,Wang, Y. K..,Wang, M. M..,...&Liu, C. S..(2019).Tailoring mechanical properties of a CoCrNi medium-entropy alloy by controlling nanotwin-HCP lamellae and annealing twins.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,744(无),241-246.
MLA	Deng, H. W.,et al."Tailoring mechanical properties of a CoCrNi medium-entropy alloy by controlling nanotwin-HCP lamellae and annealing twins".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 744.无(2019):241-246.