Evolution of Annealing Twins and Recrystallization Texture in Thin-Walled Copper Tube During Heat Treatment

作     者：Song-Wei Wang Hong-Wu Song Yan Chen Shi-Hong Zhang Hai-Hong Li Song-Wei Wang;Hong-Wu Song;Yan Chen;Shi-Hong Zhang;Hai-Hong Li

作者机构：Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and EngineeringUniversity of Science and Technology of ChinaShenyang 100049China School of Nuclear Equipment and Nuclear EngineeringYantai UniversityYantai 264005China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2020年第33卷第12期

页      面：1618-1626页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：financially supported by the Natural Science Foundation of Shandong Province under Grant No.ZR2018MEE005 

主　　题：Copper tube Annealing twin Heat treatment Electron backscattered diffraction(EBSD)analysis Recrystallization texture 

摘      要：Thin-walled copper tubes are usually produced by multi-pass float-plug drawing *** general,the annealing treatment subsequently is necessary to release the stored energy and adjusts the *** this study,an investigation on the evolution of annealing twins as well as textures in the thin-walled(Φ6 mm×0.3 mm)copper tube underwent holding time-free heat treatment was *** backscattered diffraction analysis reveals that a large number ofΣ3 boundaries(600twin relationship)are produced at the early stage of heat treatment,which is due to the lower boundary *** the recrystallization proceeding,the migration rate of grain boundaries decreases on account of the grain growth;meanwhile,the uniqueΣ9 boundaries(38.9°relationship)are formed due to the interaction of theΣ3 *** a result,the number fractions ofΣ3 boundaries and high-angle grain boundaries decrease *** the grain growth stage,a strong recrystallization texture was formed due to the fact that the grains of Goss orientation have a growth advantage over the *** a result,the initial copper texture was transferred into the Goss texture in domination.