Tailoring the texture and mechanical properties of 3％Y2O3p/ZGK200 composites fabricated by unidirectional and cross rolling followed by annealing

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外文摘要：3％Y2O3p/ZGK200 composites were subjected to unidirectional rolling(UR)and cross rolling(CR)at 400 ℃ and 350 ℃ followed by an-nealing 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 Y2O3 particles bands distributed along RD.After annealing,static recrystallization(SRX)occurred and most deformed grains transformed into equi-axed grains.A non-basal texture with two strong T-texture components was obtained after UR while a non-basal elliptical/circle texture with cir-cle 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 Y2O3 particles broke during rolling.The fracture of the composites was attributed to the existence of Y2O3 clusters and interfacial debonding between particles and matrix during tension,as a result,the ductility was not as superior as matrix alloy.

外文关键词：

Magnesium matrix compositesUnidirectional rollingCross rollingTextureMechanical properties

作者：

Xihai Li、Hong Yan、Zhiwei Shan、Rongshi Chen

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作者单位：

Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,72 Wenhua Road,Shenyang 110016,China

School of Materials Science and Engineering,University of Science and Technology of China,72 Wenhua Road,Shenyang 110016,China

School of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao,Shandong 266590,China

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 Matenials,Xi'an Jiaotong University,Xi'an 710049,China

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基金：

Natural Science Foundation of Shandong ProvinceNatural Science Foundation of Liaoning ProvinceNational Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)State Key Program of National Natural Science of ChinaNational Key Research and Development Program of China

项目编号：

ZR2021ME2412020-MS-0045160119351701218515310022016YFB0301104

出版年：

2024

DOI：

10.1016/j.jma.2022.06.007

镁合金学报(英文)

ISSN：2213-9567

年,卷(期)：2024.12(4)