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 ; Zhao, YL ; Tong, Y ; Jiao, ZB ; Wei, J ; Cai, JX ; Han, XD ; Chen, D ; Hu, A ; Kai, JJ
刊名	SCIENCE
	2018-11-23
卷号	362 期号:6417 页码:933-+
ISSN号	0036-8075
DOI	10.1126/science.aas8815
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.
学科主题	Multidisciplinary Sciences
语种	英语
WOS记录号	WOS:000451124500039
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79813]
专题	金属研究所_中国科学院金属研究所
作者单位	1.[Yang, T. 2.Liu, C. T.] City Univ Hong Kong, Coll Sci & Engn, Dept Mat Sci & Engn, Hong Kong, Hong Kong, Peoples R China 3.[Yang, T. 4.Zhao, Y. L. 5.Tong, Y. 6.Wei, J. 7.Chen, D. 8.Hu, A. 9.Kai, J. J. 10.Liu, C. T.] City Univ Hong Kong, Coll Sci & Engn, Dept Mech Engn, Ctr Adv Struct Mat, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Yang, T,Zhao, YL,Tong, Y,et al. Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys[J]. SCIENCE,2018,362(6417):933-+.
APA	Yang, T.,Zhao, YL.,Tong, Y.,Jiao, ZB.,Wei, J.,...&Liu, CT.(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-+.