NANOTWINS

作品数：19被引量：36H指数：3
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Distorted Nanotwins Unlock the Catalytic Potential of Copper for Hydrogen Evolution
《cMat》2025年第1期9-11,共3页Guangbo Chen Tierui Zhang 
fundings from the National Key R&D Program of China(Nos.2023YFA1507201 and 2024YFA1510700).
The escalating energy crisis and worsening environmental challenges underscore the urgent need for sustainable energy alternatives to replace fossil fuels.Molecular hydrogen(H2)has emerged as a promising energy carrie...
关键词：COPPER replace CATALYTIC 
A molecular dynamics study on mechanical performance and deformation mechanisms in nanotwinned NiCo-based alloys with nano-precipitates under high temperatures
《Chinese Physics B》2024年第11期349-355,共7页Zihao Yu Hongyu Wang Ligang Sun Zhihui Li Linli Zhu 
Project supported by the National Natural Science Foundation of China(Grant No.12072317);the Natural Science Foundation of Zhejiang Province(Grant No.LZ21A020002);Ligang Sun gratefully acknowledges the support received from the Guangdong Basic and Applied Basic Research Foundation(Grant No.22022A1515011402);the Science,Technology and Innovation Commission of Shenzhen Municipality(Grant No.GXWD20231130102735001);Development and Reform Commission of Shenzhen(Grant No.XMHT20220103004).
Molecular dynamics simulations are performed to investigate the mechanical behavior of nanotwinned NiCo-based alloys containing coherent L1_(2) nano-precipitates at different temperatures,as well as the interactions b...
关键词：NiCo-based alloys high temperature nano-precipitate NANOTWINS molecular dynamics simulation mechanical behavior deformation mechanism dislocations 
Mechanical Properties and Microstructure of the Shear Band Formed at Cryogenic Temperature in the NiCrFe Medium‑Entropy Alloy
《Acta Metallurgica Sinica(English Letters)》2024年第8期1377-1386,共10页Ruoyu Liu Wenshu Li Xiayang Yu Lanyi Liu Bingfeng Wang 
supported by the National Natural Science Foundation of China(Grant Nos.51771231,52020105013);The authors express their sincerest gratitude to Professor Marc A.Meyers at the University of California,San Diego for his advice and helps;The authors also express their sincere thanks to Professor Yong Liu and Bin Liu at the University of Central South University for their advice and helps.
There are nanotwins in the shear band formed in a moment(about 10^(−5)s)in some NiCrFe-based medium-entropy alloys(MEAs),and these shear bands can be recognized as a special kind of materials due to their high strengt...
关键词：Medium-entropy alloy Shear band NANOTWINS Strengthening mechanism 
Nanotwining induced by tensile fatigue and dynamic impact of laser powder bed fusion additively manufactured CoCrFeNi high-entropy alloy被引量：1
《Journal of Materials Science & Technology》2024年第16期241-257,共17页Guoqing Huang Bo Li Yinan Chen Fuzhen Xuan 
sponsored by the National Natural Science Foundation of China(Grant No.52175140);National Key R&D Program of China(Grant No.2022YFB4602102);Fundamental Research Funds for the Central Universities in China(Grant No.JKG01231610);Pre research project of Civil Aerospace Technology(Grant No.D020301);Equipment Pre-research Sharing Technology Key Project(Grant No.JZX7Y20210422004601).
The laser powder bed fusion(L-PBF)additively manufactured CoCrFeNi high-entropy alloy(HEA),with face-centered cubic(FCC)crystal structure,demonstrates better comprehensive mechanical properties in the building directi...
关键词：High-entropy alloy NANOTWINS FATIGUE Impact behavior Additive manufacturing 
Origin of the high propensity for nanoscale deformation twins in CrCoNi medium-entropy alloy
《Journal of Materials Science & Technology》2024年第16期63-71,共9页Nan-Jun Liu Zhang-Jie Wang Jun Ding Mark Asta Robert O.Ritchie Bin Gan Evan Ma Zhi-Wei Shan 
supported by the National Natural Science Foundation of China(Nos.52231001,51971167,and 52031011);the Xi’an Science and Technology Plan(No.2017xasjl014);B.G.gratefully acknowledges the financial support of the project from the Ministry of Science and Technology of China(No.2017YFA0700703);the support by the National Natural Science Foundation of China(No.92060102);E.M.and J.D.acknowledge the support at CAID by XJTU.J.D.acknowledges support from the National Natural Science Foundation of China(No.12004294);the HPC platform of Xi’an Jiaotong University;supported by the Office of Science,Office of Basic Energy Sciences,Materials Sciences and Engineering Division,of the U.S.Department of Energy under Contract No.DE-AC02-05-CH11231.
Single-phase face-centered cubic(fcc)high/medium-entropy alloys(H/MEAs)exhibit a much higher tendency to form nanoscale deformation twins than conventional fcc metals with similar low stacking fault energies(SFEs).Thi...
关键词：High-entropy alloys CrCoNi NANOTWINS Twin nucleation 
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 
块体择优取向纳米孪晶铜的优异抗疲劳裂纹扩展性能
《Science China Materials》2023年第11期4251-4257,共7页赵瑞珂 赵怀智 卢磊 
the financial support by the National Natural Science Foundation of China(NSFC,51931010,92163202);the Key Research Program of Frontier Science and International partnership program(GJHZ2029)。
本文研究了具有不同微观结构(如晶粒尺寸和孪晶厚度)的块体择优取向纳米孪晶Cu(NT-Cu)的疲劳裂纹扩展(FCG)特性,着重讨论了裂纹闭合效应和近门槛值区域的本征FCG阻力.与传统无孪晶的粗晶Cu相比,NT-Cu样品表现出显著提升的疲劳裂纹扩展抗...
关键词：NANOTWINS fatigue crack growth rate crack closure effective crack growth threshold 
Introduction of nanotwins into nanoprecipitations strengthened CoCrNiMo_(0.2) alloy to achieve strength and ductility trade-off:A comparative research
《Journal of Materials Science & Technology》2023年第25期172-182,共11页Hao Zhang Ziyi Ren Yonggang Tong Yongle Hu Xixi Ji Lingwei Yang Kaiming Wang Jingzhong Fang Hui Chen Xiubing Liang 
supported by the National Natural Science Foundation of China(Nos.92166105 and 52005053);the High-Tech Industry Science and Technology Innovation Leading Program of Hunan Province(No.2020GK2085);the Science and Technology Innovation Program of Hunan Province(No.2021RC3096).
Normal strengthening methods through precipitations and deformation obviously enhance the strength of metallic materials while resulting in the sacrifice of ductility,and synergistic improvement of strength and ductil...
关键词：NANOTWINS Mechanical properties Deformation behavior Strengthening mechanisms 
Electron-irradiation-facilitated production of chemically homogenized nanotwins in nanolaminated carbides
《Journal of Advanced Ceramics》2023年第6期1288-1297,共10页Hui Zhang Qianqian Jin Tao Hu Xiaochun Liu Zezhong Zhang Chunfeng Hu Yanchun Zhou Yu Han Xiaohui Wang 
Twin boundaries have been exploited to stabilize ultrafine grains and improve mechanical properties of nanomaterials.The production of the twin boundaries and nanotwins is however prohibitively challenging in carbide ...
关键词：ELECTRON-IRRADIATION MAX phases carbides antisite defects crystal-structure engineering 
High strength and deformation stability achieved in CrCoNi alloy containing deformable oxides被引量：1
《Journal of Materials Science & Technology》2023年第3期89-94,共6页Jiawei Zou Xiaoqian Fu Yajing Song Tianxin Li Yiping Lu Ze Zhang Qian Yu 
supported by the National Natural Science Foundation of China(Nos.51671168,51871197);National Key Research and Development Program of China(No.2017YFA0208200);National 111 Project(No.B16042).
Hard secondary phases usually strengthen alloys at the expense of ductility.In this work,we made a dual-phase CrCoNi-O alloy containing a face centered cubic matrix and chromium oxide.On one side,the dispersed chromiu...
关键词：Secondary phase strengthening DEFORMABILITY In-situ electron microscopy characterization NANOTWINS Strain hardening 
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