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Texture tailoring and bendability improvement of rolled AZ31 alloy using {10-12} twinning: The effect of precompression levels

查看全文 作　　者：Jong Un [1]Lee;Ye Jin [1]Kim;Sang-Hoon [1]Kim;Jeong Hun [2]Lee;Min-Seong [3]Kim;Shi-Hoon [3]Choi;Byoung Gi [4]Moon;Young Min [4]Kim;Sung Hyuk [1]Park 高影响力作者 机构地区：[1]School of Materials Science and Engineering,Kyungpook National University,Daegu 41566,Republic of Korea;[2]Ulsan Regional Division,Korea Institute of Industrial Technology,Ulsan 44413,Republic of Korea;[3]Department of Printed Electronics Engineering,Sunchon National University,Suncheon,Jeonnam 57922,Republic of Korea;[4]Implementation Research Division,Korea Institute of Materials Science,Changwon 51508,Republic of Korea高影响力机构 出　　处：《Journal of Magnesium and Alloys》索引2019年第7卷第4期,共13页高影响力期刊 基　　金：This work was supported by a National Research Foundation of Korea(NRF)grant funded by the Korean government(MSIP,South Korea)(No.2019R1A2C1085272);the R&D Center for Valuable Recycling(Global-Top R&BD Program)of the Ministry of Environment of Korea(No.2016002220003). 摘　　要：In this study,the texture of a rolled Mg alloy is effectively modified through the application of precompression and subsequent annealing treatment,leading to a remarkable improvement in the bending formability of the alloy at room temperature.Precompression induces lattice reorientation through{10-12}twinning,and annealing treatment reduces the stored strain energy of the precompressed material,which results in the formation of a stable grain structure with two dominant texture components.With an increase in precompression,the tensile strain in the outer region of the bending samples is accommodated to a greater extent due to more pronounced{10-12}twinning and basal slip.As a result,the bending formability of the material at room temperature improves with greater precompression.The variation in microstructure,texture,and bending behavior in relation to the degree of precompression is discussed in detail. 关 键 词：Magnesium Bending FORMABILITY TWINNING TEXTURE
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