HALL-PETCH

作品数:35被引量:175H指数:8
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晶界类型对Al_(0.3)CoCrFeNi高熵合金压缩力学性能的影响及机制研究
《力学学报》2025年第3期658-670,共13页陈嘉琳 李述涛 安明 艾天淳 马上 陈叶青 
高熵合金(HEA)的强化机制包括晶格摩擦、固溶强化、晶粒细化、原位相变以及纳米沉淀等,除此之外,晶界特性同样对HEA的力学性能具有显著作用.为研究晶界对Al_(0.3)CoCrFeNi HEA压缩力学性能的影响及作用机制,通过分子动力学模拟了不同晶...
关键词:高熵合金 分子动力学 晶界 变形机制 HALL-PETCH 
Predicting the Hall-Petch slope of magnesium alloys by machine learning
《Journal of Magnesium and Alloys》2024年第11期4436-4442,共7页Bo Guan Chao Chen Yunchang Xin Jing Xu Bo Feng Xiaoxu Huang Qing Liu 
supported by Jiangxi Provincial Natural Science Foundation (No.20224BAB214017);Jiangxi Academy of Sciences(Nos.2022YSBG22023,2022YSBG22024,2022YYB25,2022YYB26,2022YSBG10001);financially National Natural Science Foundation of China (Nos.52071039 and 51871032);Natural Science Foundation of Jiangsu Province (No.BK20202010)。
Hall-Petch slope(k) is an important material parameter, while there is a great challenge to accurately predict the k value of magnesium alloys due to a high dependence of k on the material parameters, deformation hist...
关键词:Hall-Petch slope Mg alloys Grain boundary strengthening Machine learning 
Multi-field Coupled Inverse Hall–Petch Relations for Ferroelectric Nanocrystals
《Acta Mechanica Solida Sinica》2024年第1期139-147,共9页Xiaodong Zhang Wei Yan Xuhui Lou Yujun Chen Zhihong Zhou Qingyuan Wang Lianhua Ma Xiaobao Tian 
supported by the National Natural Science Foundation of China(Nos.12172117,12372154);National Science and Technology Major Project(No.J2019-1II-0010-0054);National Numerical Windtunnel(No.NNW2019-JT01-023);High-Performance Computing Center of Hebei University。
Tailoring grain size can improve the strength of polycrystals by regulating the proportion of grains to grain boundaries and the interaction area.As the grain size decreases to the nanoscale,the deformation mechanism ...
关键词:FERROELECTRICS Multi-field coupling Molecular dynamics Fine-grain reinforcement Inverse Hall-Petch effect 
A combined experimental and crystal plasticity study of grain size effects in magnesium alloys被引量:2
《Journal of Magnesium and Alloys》2023年第12期4445-4467,共23页Aaditya Lakshmanan Mohsen Taheri Andani Mohammadreza Yaghoobi John Allison Amit Misra Veera Sundararaghavan 
supported by the U.S.Department of Energy,Office of Basic Energy Sciences,Division of Materials Sciences and Engineering under Award #DE-SC0008637 as part of the Center for PRedictive Integrated Materials Science (PRISMS Center) at the University of Michigan;supported by National Science Foundation grant number ACI1548562,through the allocation TG-MSS160003。
This work presents a method to incorporate the micro Hall-Petch equation into the crystal plasticity finite element(CPFE) framework accounting for the microstructural features to understand the coupling between grain ...
关键词:HALL-PETCH Crystal plasticity Grain size TEXTURE Magnesium alloys 
Generalization of the Hall-Petch and inverse Hall-Petch behaviors by tuning amorphous regions in 2D solids
《National Science Open》2023年第3期83-94,共12页Zhibin Xu Mengmeng Li Huijun Zhang Yilong Han 
supported by the Guangdong Basic and Applied Basic Research Foundation(2020B1515120067);the Hong Kong Research Grants Council under the Collaborative Research Fund(CRF-C6016-20G and CRF-C6021-19EF);the Fundamental Research Funds for the Central Universities(xxj032021001);the Key R&D Project of Shaanxi Province(2022GY-400);the National Natural Science Foundation of China(12274336).
The strengthσ_(y)(D)of a polycrystal can decrease or increase with the grain diameter D,i.e.,the famous Hall-Petch(HP)and inverse-Hall-Petch(IHP)behaviors,respectively.However,σ_(y)(D)under thick grain boundaries(GB...
关键词:POLYCRYSTAL amorphous solid crystal-glass crossover Hall-Petch strengthening inverse Hall-Petch weakening 
Grain-size effect on dislocation source-limited hardening and ductilization in bulk pure Ni被引量:1
《Journal of Materials Science & Technology》2023年第23期9-21,共13页Kai Hu Jun Yi Bo Huang Gang Wang 
financially supported by the National Natural Science Foundation of China(Nos.51827801 and 52171160);the National Key Research Development Program of China(No.2016YFB0700203).
Dislocation source-limited hardening and ductilization is an effective strategy to obtain superior strength-ductility synergy in some engineering structural metals. Recent works demonstrated that the synergy could be ...
关键词:Dislocation source-limited hardening Dislocation source-limited ductilization Grain size Yield point Hall-Petch slope 
Influence of Texture on Hall-Petch Slope in Hot-extruded AZ31 Magnesium Alloys被引量:1
《Journal of Wuhan University of Technology(Materials Science)》2023年第4期917-923,共7页王岭 ZHAO Yiquan WANG Yanmeng SUN Chao CHEN Hongmei ZHANG Jing ZHAO Mei LIU Ying WANG Yinong 
Funded by the National Natural Science Foundation of China(No.51271046);the Liaoning Science and Technology Joint Fund(Nos.2020-YKLH-26 and 2021-YKLH-19);the Liaoning Science and Technology Projects(No.20180550724);the Foundation of Liaoning Key Laboratory of Chemical Additive Synthesis and Separation(No.ZJNK2109);the Doctoral Business and Innovation Launching Plan of Ying Kou City(No.QB-2019-10);the HighLevel Talent Research Startup Foundation of Yingkou Institute of Technology(Nos.YJRC202008 and YJRC202009)。
To study the influence of texture on Hall-Petch slope,the Hall-Petch relationships of two hot-extruded AZ31 alloys(A117 and A189)were determined by the measurement of yield strength at room temperature.To determine th...
关键词:Hall-Petch relationship AZ31 TEXTURE 
On the strengthening and slip activity of Mg-3Al-1Zn alloy with pre-induced{1012¯}twins被引量:1
《Journal of Magnesium and Alloys》2023年第4期1292-1307,共16页Jie Kuang Yuqing Zhang Xinpeng Du Jinyu Zhang Gang Liu Jun Sun 
supported by the National Natural Science Foundation of China(grant numbers 51801147,51790482,51722104,51625103,and 51621063);the National Key Re-search and Development Program of China(grant number 2017YFB0702301);the International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies.
{1012¯}twins were introduced into the magnesium(Mg)plate AZ31 via pre-rolling along its transverse direction.The plates,both with and without the pre-induced{1012¯}twins,were subjected to uniaxial tension along diff...
关键词:Mg alloy {1012¯}twins Strengthening Slip activity Micro Hall-Petch effect 
Enhanced Hall-Petch strengthening in graphene/Cu nanocomposites被引量:10
《Journal of Materials Science & Technology》2021年第28期176-183,共8页Shuang Zhang Fei Wang Ping Huang 
financially supported by the Natural Science Foundation of Shaanxi Province(No.2019TD-020);the Natural Science Basic Research Plan in Shaanxi Province of China(Nos.2020JM-41 and 2020JM-33);the National Natural Science Foundation of China(No.51471131);the Fundamental Research Funds for the Central Universities。
Grain size dependent strength,known as Hall-Petch relation,has been approved to be valid in crystalline metals and alloys.However,softening would eventually occur as grain size reduced into nanoscale that below a crit...
关键词:Hall-Petch relation Graphene composite Strengthening Molecular dynamics simulation Dislocations 
复合细化变质多元铝硅合金的强化机制被引量:3
《稀有金属材料与工程》2020年第10期3402-3411,共10页王正军 张满 张秋阳 吕建强 
National Natural Science Foundation of China(51701079);Doctoral Scientific Research Start-up Foundation from Huaiyin Institute of Technology,Jiangsu,China(Z301B18558);Enterprise-University-Research Institute Collaboration Project of Jiangsu Province(FZ20190349)。
为改善力学性能,采用新型Al-5Ti-1B-1RE中间合金细化剂和Al-10Sr中间合金变质剂对铸态多元铝硅A356铝合金及在铸态A356铝合金中按一定比例添加Cu、Mn、Ti等元素组成的新型铝合金进行复合细化变质处理。采用光学显微镜(OM)、扫描电镜(SEM...
关键词:复合细化变质 第二相粒子 形态分布 Hall-Petch晶界细晶强化机制 Orowan强化机制 
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