Examination of copper/stainless steel joints formed by explosive welding
Examination of copper/stainless steel joints formed by explosive welding
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DOI：
10.1016/j.matdes.2004.07.021
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发表时间：
2005-01-01
影响因子：
8.4
通讯作者：
Findik, F
中科院分区：
文献类型：
--
作者：
Durgutlu, A;Gülenç, B;Findik, F
在这项研究中，采用不同的炸药比例和不同的间距，对铜和钢爆炸焊接的结合能力进行了研究。实验研究表明，铜和不锈钢能够通过爆炸焊接实现具有良好结合性能的连接。在结合界面处，未形成金属间化合物。据观察，当炸药比例和间距增大时，光滑的结合界面会转变为波浪形结合界面。随着炸药比例和间距的增加，波的振幅和波长都会增大。研究发现，由于冲击效应产生的变形，结合界面和板材外表面的硬度有所增加。由于炸药比例和间距增加导致形成波浪形界面，总界面面积增大。此外，在拉伸剪切试验后波浪形界面未分离。对结合样品进行的不同直径的弯曲试验表明，结合样品的界面无任何缺陷。扫描电子显微镜中的能谱分析表明，结合板材之间未发生扩散，然而，对结合样品进行不同时间的退火后观察到了扩散现象。（c）2004爱思唯尔有限公司。保留所有权利。
In this study, bonding ability of copper and steel with explosion welding was investigated using different ratios of explosive and different stand-off distance. Experimental studies showed out that, copper and stainless steel could be bonded with a good quality of bonding properties with explosion welding. In the bonding interface, intermetallics were not formed. It was observed that, when explosive ratio and stand-off distance were increased smooth bonding interface was transformed to a wavy bonding interface. As the ratio of explosive and stand-off distance increase, the amplitude and wavelength of wave were increased. It was found that, hardness of bonding interface and outer face of plates were increased because of deformation that was originating from impact the effect. Total interface area increased as a result of wavy interface, which was caused by increased explosive ratio and stand-off distance. In addition, wavy interfaces did not separate after tensile-shearing test. Bending tests applied on bonded samples had different diameters indicated that interfaces of the bonded samples have not any defect. EDS analyses in SEM showed that diffusion did not take place between bonding plates, however, diffusion was observed after annealing of the bonded samples for different times. (c) 2004 Elsevier Ltd. All rights reserved.