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| Design, fabrication, microstructure and properties of Cu-(graphene/6063Al) composites |
| ZHANG Kemeng1，LIU Pei1，2，WANG Jie1，HOU Bo1，LIU Zhenwei1，GAO Yan3 |
| （1. College of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China; 2. Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology, Luoyang 471023, China; 3. Henan Institute of Metallurgy Co., LTD, Zhengzhou 450000, China） |
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Abstract In this paper, the Cu-6063Al composites and 0.5%, 1.0% content Cu- (graphene/6063Al) composites were fabricated by cold isostatic pressing + vacuum hot pressing sintering + hot extrusion method using 6063Al al‐ loy powders, graphene nanosheets and pure Cu sheet with a thickness of 2 mm as raw materials. The phase analy‐ sis, microstructure, fracture characterization and mechanical properties of the three composites were investigated by XRD, SEM and tensile testing machine. The metallurgical composite of graphene /6063Al and Cu can effective‐ ly inhibit the diffusion of Al atoms, and thus inhibit the formation of Al4Cu9, Al2Cu 和 AlCu intermetallic com‐ pounds at the Cu/Al interface in Cu-6063Al composites. The tensile strength of 0.5% and 1.0% Cu- (graphene/ 6063Al) composites is 76.9 MPa and 101.3 MPa, which are 40% and 83.8% higher than that of Cu-6063Al com‐ posites respectively, and the elongation is decreased. The Cu-(1.0%graphene/6063Al) composite possess excellent mechanical properties, due to a small amount of brittle phase at the Cu/Al interface and more, smaller, deeper dimples, wider tearing edges and tighter distribution of graphene nanosheets near the interface layer of Al side.
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Received: 01 March 2023
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Corresponding Authors:
柳 培（1991—），男，博士，博士后，副教授，主要研究方向为高性能新型金属基复合材料。
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2024, Vol. 34 
