Effects of hot extrusion on microstructure and mechanical properties of Mg matrix composite reinforced with deformable TC4 particles

作     者：Xiaojun Wang Xiaoming Wang Xiaoshi Hu Kun Wu Xiaojun Wang;Xiaoming Wang;Xiaoshi Hu;Kun Wu

作者机构：School of Materials Science and EngineeringHarbin Institute of TechnologyHarbin 150001China 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2020年第8卷第2期

页      面：421-430页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 080201[工学-机械制造及其自动化] 

基　　金：This work was supported by“‘National Key R&D Program of China’”2017YFB0703100) “National Natural Science Foundation of China”(Grant Nos.51471059 and 51671066),Key Laboratory of Superlight Materials&Surface Technology(Harbin Engineering University),Ministry of Education and Key Laboratory of Lightweight and High Strength Struc-tural Materials of Jiangxi Province 

主　　题：Mg matrix composites Ti particles Hot extrusion Mechanical properties 

摘      要：Mg matrix composites were often reinforced by non-deformable ceramic *** this paper,a novel Mg matrix composite reinforced with deformable TC4(Ti-6Al-4 V)particles was fabricated and then *** evolutions of microstructure and mechanical properties of the composite during hot extrusion were *** extrusion refined giains and eliminated the segregation of TC4 ***4 particles,as deformable particles,stimulated the nucleation of dynamic recrystallization during ***,since the deformation of TC4 particles partly released the stress concentrations around them,the recrystallized grains are just slightly smaller around TC4 particles than that away from them,which is evidently different from the case in Mg matrix composites reinforced by non-deformable ceramic *** with AZ91 matrix composites reinforced by SiC particles,the present composite possesses the superior comprehensive mechanical properties,which are attributed to not only the strong interfacial bonds between TC4p and matrix but also the deformability of TC4 particles.