Tailoring the texture and mechanical properties of 3%Y_(2)O_(3)p/ZGK200 composites fabricated by unidirectional and cross rolling followed by annealing  

作　　者：Xihai Li Hong Yan Zhiwei Shan Rongshi Chen 

机构地区：[1]Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,72 Wenhua Road,Shenyang 110016,China [2]School of Materials Science and Engineering,University of Science and Technology of China,72 Wenhua Road,Shenyang 110016,China [3]School of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao,Shandong 266590,China [4]Center for Advancing Materials Performance from the Nanoscale(CAMP-Nano)and Hysitron Applied Research Center in China(HARCC),State Key Laboratory for Mechanical Behavior of Materials,Xi’an Jiaotong University,Xi’an 710049,China

出　　处：《Journal of Magnesium and Alloys》2024年第4期1479-1495,共17页镁合金学报（英文）

基　　金：financial supports from the Natural Science Foundation of Shandong Province(ZR2021ME241);the Natural Science Foundation of Liaoning Province(No.2020-MS-004);the National Natural Science Foundation of China(NSFC,Nos.51601193 and 51701218);State Key Program of National Natural Science of China(No.51531002);National Key Research and Development Program of China(No.2016YFB0301104).

摘　　要：3%Y_(2)O_(3)p/ZGK200 composites were subjected to unidirectional rolling(UR)and cross rolling(CR)at 400℃and 350℃followed by annealing at 300℃for 1 h.The microstructure,texture and mechanical properties of rolled and annealed composites were systematically studied.The rolled composites exhibited a heterogeneous microstructure,consisting of deformed grains elongated along rolling direction(RD)and Y_(2)O_(3)particles bands distributed along RD.After annealing,static recrystallization(SRX)occurred and most deformed grains transformed into equiaxed grains.A non-basal texture with two strong T-texture components was obtained after UR while a non-basal elliptical/circle texture with circle multi-peaks was obtained after CR,indicating that rolling path had great influences on texture of the composites.After annealing process,R-texture component disappeared or weakened,as results,a non-basal texture with double peaks tilting from normal direction(ND)to transverse direction(TD)and a more random non-basal texture with circle multi-peaks were obtained for UR and CR composites,respectively.The yield strength of rolled composites after UR showed obvious anisotropy along RD and TD while a low anisotropic yield strength was obtained after CR.Some Y_(2)O_(3)particles broke during rolling.The fracture of the composites was attributed to the existence of Y_(2)O_(3)clusters and interfacial debonding between particles and matrix during tension,as a result,the ductility was not as superior as matrix alloy.

关 键 词：Magnesium matrix composites Unidirectional rolling Cross rolling TEXTURE Mechanical properties 

分 类 号：TG335[金属学及工艺—金属压力加工] TG156.2[一般工业技术—材料科学与工程] TB333