典型文献
Strengthening mechanism of B4C@APC/Al matrix composites reinforced with bimodal-sized particles prepared by hydrothermal carbonized deposition on chips
文献摘要：
A B4C@amorphous carbon(APC)/Al matrix composite was fabricated by using hydrothermal carbonized deposition on chips(HTCDC)process and solid-state synthesis process.The microstructure and mechan-ical properties of the B4C@APC/Al matrix composite were investigated.After HTCDC process,nano-B4C particles(50 nm)and micron-sized B4C@APC core-shell spheres with a diameter of 2 μm were found in the composites.The microhardness of the micron-sized B4C@APC spheres is 1.66 GPa,which is greater than that of the α-Al matrix(1.06 GPa).Dislocation accumulation is observed around the micron-sized B4C@APC spheres,indicating that the micron-sized B4C@APC spheres have a strengthening effect on theα-Al matrix.Due to the formation of micron-sized B4C@APC spheres,the reinforcement of nano-B4C particles into the composites is transformed from single-sized particle enhancement to bimodal-sized particle enhancement.The strengthening mechanism for B4C@APC/Al matrix composites with bimodal-sized particles of nano-B4C and micron-sized B4C@APC spheres were analyzed,which includes thermal mismatch strengthening generated by the mismatch of coefficient of thermal expansion(CTE)between micron-sized B4C@APC core-shell spheres and α-Al matrix,Orowan strengthening produced by nano-B4C particles,Hall-Petch strengthening and load transfer strengthening produced by the bimodal-sized en-hancement from nano and microspheres.A relationship model between the yield strength(YS)increment and the conversion rate(x)of micron-sized B4C@APC core-shell spheres was estimated.
文献关键词：
中图分类号：
作者姓名：
Yingjie He;Hongyu Xu;Yang Liu;Yihan Chen;Zesheng Ji
作者机构：
School of Material Science and Chemical Engineering,Harbin University of Science and Technology,Harbin 150040,China;Energy and Environment Engineering Institute,Nanchang Institute of Technology,Nanchang 330044,China;College of Electrical,Energy and Power Engineering,Yangzhou University,Yangzhou 225127,China
文献出处：
引用格式：
[1]Yingjie He;Hongyu Xu;Yang Liu;Yihan Chen;Zesheng Ji-.Strengthening mechanism of B4C@APC/Al matrix composites reinforced with bimodal-sized particles prepared by hydrothermal carbonized deposition on chips)[J].材料科学技术（英文版）,2022(28):60-69
A类：
HTCDC
B类：
Strengthening,mechanism,B4C,APC,matrix,composites,reinforced,bimodal,sized,particles,prepared,by,hydrothermal,carbonized,deposition,chips,amorphous,was,fabricated,using,process,solid,state,synthesis,microstructure,ical,properties,were,investigated,After,nano,micron,core,shell,diameter,found,microhardness,GPa,which,greater,than,that,Dislocation,accumulation,observed,around,indicating,have,strengthening,effect,Due,formation,reinforcement,into,transformed,from,single,enhancement,analyzed,includes,mismatch,generated,coefficient,expansion,CTE,between,Orowan,produced,Hall,Petch,load,transfer,microspheres,relationship,model,yield,YS,increment,conversion,estimated
AB值：
0.34249
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