MICROBANDS

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Refractory high-entropy alloys with ultra-high strength and strain hardening ability induced by heterogeneous deformation and microbands
《Journal of Materials Science & Technology》2024年第25期215-227,共13页Yaxi Ma Yang Zhang Lixin Sun Zhongwu Zhang 
supported by the NSFC Funding(Nos.U2141207,52001083,and 52171111);the Natural Science Foun-dation of Heilongjiang(No.YQ2023E026);the Youth Talent Project of China National Nuclear Corporation(No.CNNC2021YTEP-HEU01).
Refractory high-entropy alloys(RHEAs)are potential materials for high-temperature structural applica-tions due to their excellent high-temperature performance.However,the early onset of plastic instability in RHEAs is...
关键词：Refractory high-entropy alloy Severe plastic deformation Heterogeneous structure Heterogeneous deformation-induced hardening Microband-induced plasticity 
Probing the small-scale impact deformation mechanism in an aluminum single-crystal
《Journal of Materials Science & Technology》2024年第20期212-220,共9页Kehua Wang Jian Chen Yanhuai Li Xiyu Zhang Ben.D.Beake 
This work was supported by the National Natural Science Foun-dation of China(No.52371058);the Ministry of Science and Tech-nology of the People’s Republic of China(No.2019YFE0191500);the State Key Laboratory for Mechanical Behavior of Materials(No.20222406).
Although the rate-dependence of metals has been widely researched,the deformation mechanism under small-scale impact conditions lacked exploration and in-depth understanding.Using quasi-static nanoin-dentation(strain ...
关键词：NANOINDENTATION Nano-impact Microstructure Aluminum single crystal MICROBANDS Dislocations 
Simultaneous enhancement of strength and ductility via microband formation and nanotwinning in an L1_(2)-strengthened alloy
《Fundamental Research》2024年第1期147-157,共11页Lu Yang Dingshan Liang Zhuo Cheng Ranxi Duan Chuanxin Zhong Junhua Luan Zengbao Jiao Fuzeng Ren 
The authors also thank the Microscope and Imaging Center at Southern University of Science and Technology,China.This work was financially supported by the National Natural Science Foundation of China(52122102);Guangdong Innovative&Entrepreneurial Research Team Program(2016ZT06C279);APT research was conducted at the Inter-University 3D APT Unit of City University of Hong Kong(CityU),which is supported by the CityU grant(9360161).
Metallic alloys with high strength and large ductility are required for extreme structural applications.However,the achievement of ultrahigh strength often results in a substantially decreased ductility.Here,we report...
关键词：L1_(2)-strengthened superlattice alloy Stacking fault energy NANOTWINS MICROBANDS Strain hardening 
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