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SEGREGATION: 作品数：574被引量：1111H指数：12; 导出分析报告; 相关领域：一般工业技术金属学及工艺更多>>; 相关作者：卢俊缪竹骏徐文亮宋洪伟单爱党更多>>; 相关机构：上海交通大学哈尔滨工业大学北京科技大学宝钢集团中央研究院更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金高等学校学科创新引智计划更多>>

High-pressure-torsion-induced segregation,precipitation and grain refinement of Al-(Si,Mg and Cu)binary alloys: 《Journal of Materials Science & Technology》2024年第32期102-113,共12页Man Feng Qinli Wu Jing Xue Zhenjiao Luo Zhiping Wang Xianghai An Xiaozhou Liao Jiehua Li Shenbao Jin Gang Sha; support of the National Natural Science Foundation of China(No.51571120).; To uncover the effects of segregation and precipitation on grain refinement of metals under severe plastic deformation,high-pressure-torsion(HPT)processing is performed on three binary Al-(Si,Mg,and Cu)alloys with dif...; 关键词：Al alloys High pressure torsion Grain refinement SEGREGATION PRECIPITATION

Principle and in-situ observation on discrete solidification: 《Journal of Materials Science & Technology》2024年第25期28-41,共14页Xiaoping Ma Dianzhong Li Zhuo Zhao Hongwei Liu Yanfei Cao Paixian Fu Pei Wang; supported by the General Program of the National Natural Science Foundation of China(Grant No.52271041);the Key Program of the National Natural Science Foundation of China(Grant No.52031013).; Solidification is an important branch of material science.By model calculation and in-situ observation in this work,distinct from traditional solidification of continuous solid growth,the evolution of discrete so-lidi...; 关键词：Solidification principle DENDRITE SEGREGATION Semi-solid matrix

First-principle study on the segregation and strengthening behavior of solute elements at grain boundary in BCC iron被引量：1: 《Journal of Materials Science & Technology》2024年第22期247-261,共15页Feiyang Wang Hong-Hui Wu Xiaoye Zhou Penghui Bai Chunlei Shang Shuize Wang Guilin Wu Junheng Gao Haitao Zhao Chaolei Zhang Xinping Mao; funded by the National Natural Science Foundation of China(Nos.52122408,52071023,52101019,52293391,and 51901013);Honghui Wu acknowledges support from the Fundamental Research Funds for the Central Universities(University of Science and Technology Beijing,Nos.06500135 and FRF-TP2021-04C1)。; Grain boundary(GB)significantly influences the mechanical properties of metal structural materials,yet the effect of solutes on GB modification and the underlying atomic mechanisms of solute segregation and strengthen...; 关键词：Grain boundary Iron-based alloys First-principle calculations Segregation energy Strengthening energy

“Branched”structural transformation of the L1_(2)-Al_(3)Zr phase manipulated by Cu substitution/segregation in the Al-Cu-Zr alloy system被引量：1: 《Journal of Materials Science & Technology》2024年第18期186-206,共21页Lipeng Ding Mingqi Zhao Flemming J.H.Ehlers Zhihong Jia Zezhong Zhang Yaoyao Weng Dominique Schryvers Qing Liu Hosni Idrissi; supported by the National Key Research and Development Program(No.2020YFA0405900);the National Natural Science Foundation of China(Grant No.52371111 and U2141215);the Natural Science Foundation of Jiangsu Province(No.BE2022159).; The effect of Cu on the evolution of the Al_(3)Zr phase in an Al-Cu-Zr cast alloy during solution treatment at 500℃has been thoroughly studied by combining atomic resolution high-angle annular dark-field scanning tra...; 关键词：Aluminum alloys TRIALUMINIDES Anti-phase boundary High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) First-principles calculations

Degraded creep resistance induced by static precipitation strengthening in high-pressure die casting Mg-Al-Sm alloy被引量：3: 《Journal of Materials Science & Technology》2024年第11期48-58,共11页Qiang Yang Shuhui Lv Bo Deng Norbert Hort Yuanding Huang Wei Sun Xin Qiu; Chinese Academy of Sciences Youth Innovation Promotion Association(No.2023234);Scientific and Technological Developing Scheme of Jilin Province(No.20220402012GH);National Natural Science Foundation of China(No.U21A20323);Capital Construction Fund within the Budget of Jilin Province(No.2023C044-2);Major science and technology projects of Jilin Province and Changchun City(No.20220301026GX),the Special high-tech。; Relationship between precipitation strengthening and creep resistance improvement has been an impor-tant topic for the widespread applications of magnesium alloys.Generally,static precipitation strength-ening through ...; 关键词：Magnesium alloy Transmission electron microscopy PRECIPITATION Creep resistance SEGREGATION

Inhibiting segregation enabled outstanding combination of mechanical and corrosion properties in precipitation-strengthened aluminum alloys: 《Journal of Materials Science & Technology》2024年第12期240-250,共11页Fang Li Geng Chen Sijun Chen Changjun Zhu Kanghua Chen; financial support of National Key Research and Development Program of China(No.2021YFF0600504);State Key Laboratory of High-Performance Complex Manufacturing of Central South University(No.ZZYJKT2020-03).; Segregation of solutes to grain boundary(GB)is the dominant restriction on enhancement of mechanical properties and corrosion resistance during aging in precipitation-strengthened aluminum alloys.Here,we innovatively ...; 关键词：Precipitation-strengthened aluminum alloys Precipitate-free zone Grain boundary precipitation Mechanical properties Corrosion resistance

Creep-induced redistribution of alloying elements in CZ1 zirconium alloys: 《Journal of Materials Science & Technology》2024年第6期31-44,共14页W.T.Lin Q.Y.Lv D.Jiao L.B.Zhang J.Tan G.Sha J.Hu; the funding support from the Young Elite Scientists Sponsorship Program by CSEE.; Introducing minor alloying elements is an effective strategy to improve the corrosion and mechanical properties of zirconium alloys for nuclear applications.During in-reactor service,external environment and stress ca...; 关键词：Zirconium alloy Thermal creep Grain boundary segregation Dislocation segregation Cu-rich nanoclusters

Grain-boundary segregation and grain growth in nanocrystalline substitutional solid solution alloys: 《Journal of Materials Science & Technology》2024年第1期239-249,共11页Fawei Tang Chao Hou Hao Lu Zhi Zhao Xiaoyan Song; supported by the Beijing Natural Science Foun-dation(No.2214067);the National Key R&D Program of China(Nos.2021YFB3501502 and 2021YFB3501504);the National Natural Science Foundation of China(No.92163107).; A model for describing solute segregation at grain boundaries has been developed for substitutional solid solution alloys,which integrates multiple factors from atomic to microstructural scales.A concept of mo-lar Gib...; 关键词：Substitutional solid solution Grain boundary segregation Thermal stabilization Solute concentration Grain size

Enhanced thermoelectric properties of NbCoSn half-Heuslers through in-situ nanocrystallization of amorphous precursors during the consolidation process: 《Journal of Materials Science & Technology》2023年第34期39-48,共10页Chanwon Jung Kyuseon Jang Hail Park Jeongin Jang Hanhwi Jang Byungchul Kang Kitae Park Siyuan Zhang Ruben Bueno Villoro SuDong Park Ho Jin Ryu Yeon Sik Jung Min-Wook Oh Christina Scheu Seong-Hoon Yi Pyuck-Pa Choi; the Basic Science Research Program of the National Research Foundation of Korea(NRF)(Nos.2021R1A4A2001658 and 2021R1A6A3A03045488).; Tailoring nanostructures is a general approach used to obtain enhanced thermoelectric properties for halfHeusler compounds because the wide areas of grain and phase boundaries could be scattering centers that lower la...; 关键词：Half-Heusler compounds AMORPHOUS SUPERPLASTICITY SEGREGATION Atom probe tomography

Role of grain boundary character on Bi segregation-induced embrittlement in ultrahigh-purity copper被引量：1: 《Journal of Materials Science & Technology》2023年第28期52-61,共10页Y.X.Hua K.X.Song H.T.Liu J.W.Wang C.M.Zhang Y.J.Zhou B.Pang J.T.Song J.L.He H.L.Zhao; the National Natu-ral Science Foundation of China(Nos.52071133,51904090 and 52071284);the Henan Province Science and Technology Tackling Key Problems Project(No.222102230001);the Henan Province Young Talent Lifting Engineering Project(No.2021HYTP018);the Central Plain Scholar Workstation Project(No.224400510025);the Key R&D projects of Henan Province(No.221111230600).; Bismuth(Bi),as an impurity element in copper and copper-based alloys,usually has a strong tendency of grain boundary(GB)segregation,which depends on the GB characters.However,the influence of such a segregation on the...; 关键词：Grain boundary character EMBRITTLEMENT Bi segregation Atomic configuration Ultrahigh-purity copper

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