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A physical model revealing strong strain hardening in nano-grained metals induced by grain size gradient structure 期刊论文
Materials Science & Engineering A, 2015, 卷号: 620, 页码: 16-21
Authors:  Li JJ(李建军);  Chen SH(陈少华);  Wu XL(武晓雷);  Su AJ(苏爱嘉);  Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710129, Shanxi, Peoples R China.
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Grain Size Gradient Structure  Extra Strain Hardening  Ductility  Geometrically Necessary Dislocations  Nano-grained Metal  
A coupling crack blunting mechanism in nanocrystalline materials by nano-grain rotation and shear-coupled migration of grain boundaries 期刊论文
Materials Letters, 2014, 卷号: 137, 页码: 218-220
Authors:  Li JJ(李建军);  Su AJ(苏爱嘉);  Chen SH(陈少华);  Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710129, Shanxi, Peoples R China.
View  |  Adobe PDF(798Kb)  |  Favorite  |  View/Download:409/111  |  Submit date:2015/01/04
Nanocrystalline Materials  Simulation And Modelling  Nano-grain Rotation  Shear-coupled Migration Of Grain Boundaries  Cracks  Dislocation Emission  
Strong crack blunting by shear-coupled migration of grain boundaries in nanocrystalline materials 期刊论文
Scripta Materialia, 2014, 卷号: 84-85, 页码: 51-54
Authors:  Li JJ(李建军);  Chen SH(陈少华);  Wu XL(武晓雷);  Soh AK;  Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian, Shanxi, Peoples R China.
View  |  Adobe PDF(723Kb)  |  Favorite  |  View/Download:787/205  |  Submit date:2014/09/02
Nanocrystalline Materials  Shear-coupled Migration Of Grain Boundaries  Cracks  Dislocation Emission  Toughening Mechanism  
The main factor influencing the tensile properties of surface nano-crystallized graded materials 期刊论文
Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2010, 卷号: 527, 期号: 26, 页码: 7040-7044
Authors:  Li JJ(李建军);  Chen SH(陈少华);  Wu XL(武晓雷);  Soh A;  Lu JA;  Chen SH
Adobe PDF(510Kb)  |  Favorite  |  View/Download:915/262  |  Submit date:2011/03/01
Surface Nano-crystallized Graded Material  Residual Stress  Work Hardening  Finite Element Method  Mechanical Attrition Treatment  Severe Plastic-deformation  Kelvin Probing Technique  Stainless-steel  Nanocrystalline Surface  Fatigue Resistance  Residual-stresses  Ultrafine Grain  Yield Strain  Nickel-alloy