Fabrication of ultrafine-grained AA1060 sheets via accumulative roll bonding with subsequent cryorolling

作     者：Qing-lin DU Chang LI Xiao-hui CUI Charlie KONG Hai-liang YU 杜青林;李畅;崔晓辉;Charlie KONG;喻海良

作者机构：State Key Laboratory of High Performance Complex ManufacturingCollege of Mechanical and Electrical EngineeringCentral South UniversityChangsha 410083China Light Alloys Research InstituteCentral South UniversityChangsha 410083China College of Mechanical EngineeringHunan Institute of Science and TechnologyYueyang 414000China Mark Wainwright Analytical CentreUniversity of New South WalesSydneyNSW 2052Australia 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2021年第31卷第11期

页      面：3370-3379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：financial supports from the National Key Research and Development Program of China (No. 2019YFB2006500) the National Natural Science Foundation of China (No. 51674303) the Huxiang High-level Talent Gathering Project of Hunan Province, China (No. 2018RS3015) the Innovation Driven Program of Central South University, China (No. 2019CX006) the Research Fund of the Key Laboratory of High Performance Complex Manufacturing at Central South University, China 

主　　题：microstructure AA1060 sheet ultrafine-grained materials cryorolling accumulative roll bonding 

摘      要：Ultrafine-grained(UFG)AA1060 sheets were fabricated via five-cycle accumulative roll bonding(ARB)and subsequent three-pass cold rolling(298 K),or cryorolling(83 K and 173 K).Microstructures of the aluminum samples were examined via transmission electron microscopy,and their mechanical properties were measured via tensile and microhardness *** indicate that ultrafine grains in ARB-processed sheets were further refined by subsequent rolling,and the grain size became finer with reducing rolling *** mean grain size of 666 nm in the sheets subjected to ARB was refined to 346 or 266 nm,respectively,via subsequent cold rolling or cryorolling(83 K).Subsequent cryorolling resulted in ultrafine-grained sheets of higher strength and ductility than those of the sheets subjected to cold rolling.