Effect of Hot-Plate Rolling on the Microstructure Evolution and Mechanical Properties of In-Situ Nano-TiC_(P)/Al-Mg-Si Composites  

作　　者：HUA Zhiting SHAN Tongtong GENG Run ZHAO Qinglong 华脂亭;SHAN Tongtong;GENG Run;赵庆龙(Key Laboratory of Automobile Materials(Ministry of Education)and School of Materials Science and Engineering,Jilin University,Changchun 130022,China)

机构地区：[1]Key Laboratory of Automobile Materials(Ministry of Education)and School of Materials Science and Engineering,Jilin University,Changchun 130022,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2022年第3期513-517,共5页武汉理工大学学报（材料科学英文版）

基　　金：the National Natural Science Foundation of China(No.51790483)。

摘　　要：The hot-plate rolling(HPR)process is adopted to achieve the optimal strength-ductility for the in-situ nano-TiC_(P)/Al-Mg-Si composites.There was no crack in the sheet by single pass of hot-plate rolling with a thickness reduction of 80%,while there were numerous cracks in the sheet by two passes of conventional hot rolling to achieve a total reduction of 50%.The microstructure and mechanical properties of the composites subjected to 80%thickness reduction of hot rolling at 540℃were investigated by tensile tests,scanning electron microscopy,and electron backscatter diffraction.The yield strength and ultimate tensile strength of in-situ nano-TiC_(P)/Al-Mg-Si composites after the hot-plate rolling process and T6 heat treatment increased significantly due to the dislocation strengthening and precipitation strengthening.

关 键 词：hot-plate rolling process aluminum matrix composites microstructure evolution mechanical property 

分 类 号：TG335.8[金属学及工艺—金属压力加工]