Enhancing plasticity of 'self-sharpening' tungsten high-entropy alloy via tailoring & mu;-precipitation

doi:10.1088/2053-1591/ace6f7

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

	Enhancing plasticity of 'self-sharpening' tungsten high-entropy alloy via tailoring & mu;-precipitation
	Li T(李统); Chen JX(陈金玺); Chen, Feng ; Chen, Yan ; Dai LH(戴兰宏)
刊名	MATERIALS RESEARCH EXPRESS
	2023-07-01
卷号	10 期号:7 页码:76511
关键词	high-entropy alloys precipitation phase transformation plasticity
DOI	10.1088/2053-1591/ace6f7
英文摘要	In our recently published work (Acta Materialia 186 (2020) 257-266), we have designed a new equimolar tungsten high-entropy alloy with excellent penetration ability to satisfy the highly desirable of 'self-sharping' in wide range of engineering application. This alloy has outstanding dynamic compressive properties and superior penetration performance than that of 93 W alloys. In this work, the tension properties of the tungsten high-entropy alloy were significantly improved by & mu; phase precipitation design strategy to tailor the morphology and distribution of & mu; phase. Through controlling the phase transformation process, the & mu; phase changes from liquid-solid phase transformation to solid-solid precipitation phase transformation. This can effectively impede the brittleness caused by the & mu; phase segregation at the grain boundary and phase boundary. Moreover, the Orowan effect caused by nano-sized & mu;-phase particles improves the tensile strength effectively (enhancing & SIM;150%) and ensure the ductility. This material design strategy significantly improves the tension ductility of the alloy and provides a new paradigm to solve the similar problem of material brittleness.
分类号	Q3
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:001032772900001
资助机构	NSFC [11972346, 12102433, U2141204, 11988102] ; National Key Research and Development Program of China [XDB22040302] ; Strategic Priority Research Program [XDB22040303, QYZDJSSW- JSC011] ; Key Research Program of Frontier Sciences [TZ2016001] ; Science Challenge Project [(ZDRW-CN-202123)] ; Key Research Program of the Chinese Academy of Sciences [KFJJ2101Z] ; State Key Laboratory of Explosion Science and Technology [11790292] ; NSFC Basic Science Center Program for Multi-scale Problems in Nonlinear Mechanics' ; [2017YFB0702003]
其他责任者	Dai, LH (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Dai, LH (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92548]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.{Li, Tong, Chen, Jinxi, Chen, Feng, Chen, Yan, Dai, Lanhong} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.{Li, Tong, Chen, Jinxi, Chen, Feng, Chen, Yan, Dai, Lanhong} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Li T,Chen JX,Chen, Feng,et al. Enhancing plasticity of 'self-sharpening' tungsten high-entropy alloy via tailoring & mu;-precipitation[J]. MATERIALS RESEARCH EXPRESS,2023,10(7):76511.
APA	李统,陈金玺,Chen, Feng,Chen, Yan,&戴兰宏.(2023).Enhancing plasticity of 'self-sharpening' tungsten high-entropy alloy via tailoring & mu;-precipitation.MATERIALS RESEARCH EXPRESS,10(7),76511.
MLA	李统,et al."Enhancing plasticity of 'self-sharpening' tungsten high-entropy alloy via tailoring & mu;-precipitation".MATERIALS RESEARCH EXPRESS 10.7(2023):76511.