Microstructure and texture evolution of Cu-Cr-Co-Ti alloys during the two-stage cryorolling

作     者：Jia-Jun Zhang Long-Jian Li Zhi-Feng Liu Zong-Ning Chen En-Yu Guo Hui-Jun Kang Ren-Geng Li Tong-Min Wang Jia-Jun Zhang;Long-Jian Li;Zhi-Feng Liu;Zong-Ning Chen;En-Yu Guo;Hui-Jun Kang;Ren-Geng Li;Tong-Min Wang

作者机构：Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province)School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China Center of Hyper-Gravity Experimental and Interdisciplinary ResearchZhejiang UniversityHangzhou 310058China Ningbo Institute of Dalian University of TechnologyNingbo 315000China Key Laboratory for Light-Weight MaterialsNanjing Tech UniversityNanjing 210009China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2024年第43卷第9期

页      面：4535-4547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：supported by the National Natural Science Foundation of China(Nos.52271025,51927801 and U22A20174) the Science and Technology Planning Project of Liaoning Province(No.2023JH2/101700295) the Innovation Foundation of Science and the Technology of Dalian(No.2023JJ12GX021) the Natural Science Foundation of Jiangsu Province(No.BK20200695) 

主　　题：Copper alloys Two-stage cryorolling Macrotexture evolution Electron backscatter diffraction Schmid factor 

摘      要：This study entailed an investigation of the mechanical properties,microstructural and texture orientation evolutions of Cu-Cr-Co-Ti alloys prepared via twostage cryorolling and intermediate aging *** this end,X-ray diffraction and electron backscatter diffraction were *** results indicate that the two-stage cryorolling and intermediate aging treatments led to the development of profuse twin bundles and significantly enhanced the mechanical *** initial cryorolling led to coplanar slip and developed a strong Y({111})orientation,accelerating the formation of Goss({011})orientation and a Brass-type *** intermediate aging treatment relieved the restriction on dislocation slip and reoriented the grains toward the Copper({112})and Z({111})*** Z orientation,with a relatively high volume fraction,dominated the *** cryorolling intensified twinning and shear banding,transforming the Copper-type shear bands into Brass-type shear bands with rhomboidal prism *** areas inside the Brasstype shear bands exhibited a Y orientation,and the areas outside the shear bands exhibited a stable Brass-type *** evident decrease in the weighted Schmid factors demonstrated that the two-stage cryorolling and intermediate aging treatment can modify the texture evolution and aid the design of high-performance Cu alloys.