Texture Evolution and Dynamic Recrystallization of Zr-1Sn-0.3Nb-0.3Fe-0.1Cr Alloy During Hot Rolling
来源期刊：Acta Metallurgica Sinica2020年第2期
论文作者：Jian Xun Gaoyong Lin Huiqun Liu Siyu Zhao Jing Chen Xun Dai Ruiqian Zhang
文章页码：215 - 224
摘 要：In the present work,the sheets of Zr-1Sn-0.3Nb-0.3Fe-0.1Cr alloy were hot rolled with different reductions（10%,30%,50%,and 60%） at 1023 K and 1073 K.The micro structure evolutions including grain micro structure,texture,and dislocation were investigated,using electron backscattering diffraction and transmission electron microscope.The results showed that dislocation slip,twinning,and dynamic recrystallization（DRX） were the main deformation mechanisms.DRX was found to be promoted by larger reduction and higher rolling temperature.The predominant texture formed during hot rolling was basal <0001>//ND,whose intensity reached peak value after 30% reduction hot rolling.While the intensity of DRX texture <10-10>//ND and<1-210>//ND increased with increasing reduction and temperature.This study provided an effective way to tailor the texture and microstructure of the alloy,for optimizing process parameters.
Jian Xun1,2，Gaoyong Lin1,2，Huiqun Liu1,2，Siyu Zhao1,2，Jing Chen1,2，Xun Dai3，Ruiqian Zhang3
1. School of Materials Science and Engineering,Central South University2. Key Lab of Nonferrous Materials, Ministry of Education,Central South University3. Science and Technology on Reactor Fuel and Materials Laboratory,Nuclear Power Institute of China
摘 要：In the present work,the sheets of Zr-1Sn-0.3Nb-0.3Fe-0.1Cr alloy were hot rolled with different reductions（10%,30%,50%,and 60%） at 1023 K and 1073 K.The micro structure evolutions including grain micro structure,texture,and dislocation were investigated,using electron backscattering diffraction and transmission electron microscope.The results showed that dislocation slip,twinning,and dynamic recrystallization（DRX） were the main deformation mechanisms.DRX was found to be promoted by larger reduction and higher rolling temperature.The predominant texture formed during hot rolling was basal <0001>//ND,whose intensity reached peak value after 30% reduction hot rolling.While the intensity of DRX texture <10-10>//ND and<1-210>//ND increased with increasing reduction and temperature.This study provided an effective way to tailor the texture and microstructure of the alloy,for optimizing process parameters.
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