Microstructural and mechanical characteristics of cladding billets with different clad ratios
AA4045/AA3003 cladding billets with different clad ratios were fabricated by direct chill casting process.The macrostructures, microstructures, compositions distribution and the mechanical properties near the bonding interface were investigated in detail.The results show that the cladding billet with few defects could be obtained by semi-continuous casting process.The metallurgical bonding was formed due to the diffusions of elements.The decreasing of clad ratio changed the microstructure at the interface and reduced the thickness of diffusion layer.The hardness around the interface is higher than that of AA3003 side but lower than that of the other side, indicating that the interface yield strength is also higher than that of AA3003.After extrusion process, the characteristics of the interface remain that of as-cast cladding billet.
casting cladding billet clad ratio diffusion layer metallurgical bonding
Xing Han Haitao Zhang Dongtao Wang Bo Shao Ke Qin Jianzhong Cui
Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education),Northeastern University,Shenyang 110819,China
国内会议
长沙
英文
62-65
2016-11-11（万方平台首次上网日期，不代表论文的发表时间）