| 异种金属材料扩散焊界面断裂分析 |
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| 引用本文： | 刘翠荣,张彦华,尹利涛.异种金属材料扩散焊界面断裂分析[J].太原科技大学学报,1999(2). |
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| 作者姓名： | 刘翠荣 张彦华 尹利涛 |
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| 作者单位： | 太原重型机械学院(刘翠荣)，北京航空航天大学(张彦华)，济南市煤气公司(尹利涛) |
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| 摘 要： | 本文探讨了将能量理论应用于异种金属材料扩散焊接头界面断裂韧性测试的可行性，并应用双悬臂梁试件测试了（Ａ３＋Ｃｕ，Ａ３＋ＬＹ１２）几种材料组合扩散焊接头界面的临界裂纹能量释放率。结果表明，异种金属材料扩散焊接头界面裂纹能量释放率与材料的弹性模量及板厚的组合有关，通过材料性能和几何尺寸的合理匹配，可以优化界面抗断裂性能。
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| 关 键 词： | 异种材料 扩散焊 断裂 |
The Study of the Interfacial Fracture of Diffusion Welding of Dissimilar Metal Materials |
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| Liu Cuirong,Zhang Yanhua.The Study of the Interfacial Fracture of Diffusion Welding of Dissimilar Metal Materials[J].Journal of Taiyuan University of Science and Technology,1999(2). |
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| Authors: | Liu Cuirong Zhang Yanhua |
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| Abstract: | In this paper,the interfacial fracture toughness of the diffusion welding of dissimiar metal materials is determined in view of energy approach .The terminal energy realease rate for a crack at interface of diffusion welding of dissimilar metal materials(steel/copper,steel/aluminum)was measured according to DCB test piece.The results show that the energy realease rate for a crack at interface has much to do with the modulus of elasticity and thickness of materials.It can control the fracture strength of the joint that the martching of the property and geometrical dimensions of materials were selected reasonably. |
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| Keywords: | dissimilar metal materials diffusion welding fracture |
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