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Multicomponent intermetallic nanoparticles and superb mechanical behaviors of complex alloys
Yang, T.1,2; Zhao, Y. L.2; Tong, Y.2; Jiao, Z. B.3; Wei, J.2; Cai, J. X.4; Han, X. D.4; Chen, D.2; Hu, A.2; Kai, J. J.2; Lu, K.5; Liu, Y.6; Liu, C. T.1,2
Corresponding AuthorLiu, C. T.(chainliu@cityu.edu.hk)
2018-11-23
Source PublicationSCIENCE
ISSN0036-8075
Volume362Issue:6417Pages:933-+
AbstractAlloy 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.
Funding OrganizationCity University of Hong Kong (CityU) from the Hong Kong Government through the GRF funds ; National Natural Science Foundation of China ; CityU
DOI10.1126/science.aas8815
Indexed BySCI
Language英语
Funding ProjectCity 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 Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000451124500039
PublisherAMER ASSOC ADVANCEMENT SCIENCE
Citation statistics
Cited Times:239[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130581
Collection中国科学院金属研究所
Corresponding AuthorLiu, C. T.
Affiliation1.City Univ Hong Kong, Coll Sci & Engn, Dept Mat Sci & Engn, Hong Kong, Hong Kong, Peoples R China
2.City Univ Hong Kong, Coll Sci & Engn, Dept Mech Engn, Ctr Adv Struct Mat, Hong Kong, Hong Kong, Peoples R China
3.Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China
4.Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China
5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
6.Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Recommended Citation
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-+.
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