Effect of Solution Temperature on Microstructure and Mechanical Properties of Hot Rolled Carbene/6061 Aluminum Matrix Composites
LI Xiao1, HU Shuiping2,*, CAI Yu3
1 National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China 2 Institute of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China 3 Amperex Technology Limited, Dongguan 523808,Guangdong, China
Abstract: In order to study solution treatment process for hot rolled carbene/6061 aluminum-based matrix composites, solution treatment (460—520 ℃×1 h) and aging treatment (180 ℃×4 h) were applied to the hot rolled composite sheets in this work. Using XRD, SEM, EBSD, TEM and tensile testing, the combined effects of solution temperature on the microstructure and mechanical properties were studied. The results show that solution and aging treatments effectively promote grain size reduction and significant mechanical properties improvement for the hot rolled compo-sites sheet. 480 ℃ is proved to be the optimized solution temperature, which is favorable for carbene/6061 aluminum alloy sheet to acquire refined uniform microstructure and superior mechanical properties, with its yield strength, ultimate tensile strength and elongation reaching the hig-hest values, 7.1%, 10.8% and 51.3% higher than the as-received condition respectively. However, when the solution temperature is higher than 500 ℃, a large amount of carbides (Al4C3) is obtained, resulting in the reduction of mechanical properties of materials.
李萧, 胡水平, 蔡钰. 固溶温度对碳烯/6061铝基复合材料轧制薄板组织与力学性能的影响[J]. 材料导报, 2022, 36(18): 21010123-6.
LI Xiao, HU Shuiping, CAI Yu. Effect of Solution Temperature on Microstructure and Mechanical Properties of Hot Rolled Carbene/6061 Aluminum Matrix Composites. Materials Reports, 2022, 36(18): 21010123-6.
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