摘要
本工作通过抗剪切强度测试、剪切断面显微观察和有限元仿真等手段对不同Cu/Al层厚比下波纹辊轧制(CRB)Cu/Al复合板的金属的变形行为和界面结合性能进行了研究。结果发现,CRB过程中界面处形成了局部强正应力和多个“搓轧区”,促进了复合板的塑性变形和界面结合。增大Cu/Al层厚比可提升Cu层的变形率和波谷界面处的正应力,有利于降低Cu/Al复合板的翘曲程度,并增强界面的整体结合性能。当层厚比从2:10增加到2:4时,界面抗剪切强度从40.39MPa上升到47.24 MPa,但界面抗剪切强度的波动逐渐增大。
The deformation behavior and interfacial bonding properties of Cu/Al clad plates with different Cu/Al thickness-ratios by corrugated roll bonding(CRB)were investigated by shear strength test,microstructure observation of shear section and finite element simulation.The results show that local strong normal stress and multiple“cross-shear”zones form at the interfaces during the CRB process,which promotes the plastic deformation and interface bonding of the clad plates.Increasing the Cu/Al thickness-ratio can increase the deformation rate of the Cu layer and enhance the interface normal stress at the trough,which is beneficial to reduce the warpage of the Cu/Al clad plates and enhance the overall bonding properties of the interface.When the Cu/Al thickness-ratio increases from 2:10 to 2:4,the interfacial shear strength increases from 40.39 MPa to 47.24 MPa,whereas the fluctuation of the shear strength gradually increases.
作者
高翔宇
黄志权
江连运
王涛
马立峰
Gao Xiangyu;Huang Zhiquan;Jiang Lianyun;Wang Tao;Ma Lifeng(College of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2023年第4期1447-1454,共8页
Rare Metal Materials and Engineering
基金
国家重点研发计划(2018YFA0707300,2018YFA0707301)
国家自然科学基金面上项目(52175354,52075357)。
