Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys

doi:10.1126/science.aas8815

CORC > 金属研究所 > 中国科学院金属研究所

	Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys
	Yang, T.3,4; Zhao, Y. L.4; Tong, Y.4; Jiao, Z. B.5; Wei, J.4; Cai, J. X.1; Han, X. D.1; Chen, D.4; Hu, A.4; Kai, J. J.4
刊名	SCIENCE
	2018-11-23
卷号	362 期号:6417 页码:933-+
ISSN号	0036-8075
DOI	10.1126/science.aas8815
通讯作者	Liu, C. T.(chainliu@cityu.edu.hk)
英文摘要	Alloy design based on single-principal-element systems has approached its limit for performance enhancements. A substantial increase in strength up to gigapascal levels typically causes the premature failure of materials with reduced ductility. Here, we report a strategy to break this trade-off by controllably introducing high-density ductile multicomponent intermetallic nanoparticles (MCINPs) in complex alloy systems. Distinct from the intermetallic-induced embrittlement under conventional wisdom, such MCINP-strengthened alloys exhibit superior strengths of 1.5 gigapascals and ductility as high as 50% in tension at ambient temperature. The plastic instability, a major concern for high-strength materials, can be completely eliminated by generating a distinctive multistage work-hardening behavior, resulting from pronounced dislocation activities and deformation-induced microbands. This MCINP strategy offers a paradigm to develop next-generation materials for structural applications.
资助项目	City University of Hong Kong (CityU) from the Hong Kong Government through the GRF funds ; National Natural Science Foundation of China[51625404] ; National Natural Science Foundation of China[11327901] ; CityU[11209314] ; CityU[11205515] ; CityU[C1027-14E]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000451124500039
资助机构	City University of Hong Kong (CityU) from the Hong Kong Government through the GRF funds ; National Natural Science Foundation of China ; CityU
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/130575]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, C. T.
作者单位	1.Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China 2.Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China 3.City Univ Hong Kong, Coll Sci & Engn, Dept Mat Sci & Engn, Hong Kong, Hong Kong, Peoples R China 4.City Univ Hong Kong, Coll Sci & Engn, Dept Mech Engn, Ctr Adv Struct Mat, Hong Kong, Hong Kong, Peoples R China 5.Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China 6.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yang, T.,Zhao, Y. L.,Tong, Y.,et al. Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys[J]. SCIENCE,2018,362(6417):933-+.
APA	Yang, T..,Zhao, Y. L..,Tong, Y..,Jiao, Z. B..,Wei, J..,...&Liu, C. T..(2018).Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys.SCIENCE,362(6417),933-+.
MLA	Yang, T.,et al."Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys".SCIENCE 362.6417(2018):933-+.