Explosive Welding of Copper to High Nitrogen Austenitic Stainless Steel
Explosive Welding of Copper to High Nitrogen Austenitic Stainless Steel
复制标题
铜与高氮奥氏体不锈钢的爆炸焊接
DOI：
10.3390/met9030339
复制
发表时间：
2019-03-17
期刊：
影响因子：
2.9
通讯作者：
Liu, Tiansheng
中科院分区：
文献类型：
--
作者：
Liu, Yingbin;Li, Chao;Liu, Tiansheng
本文首次对T2紫铜与高氮奥氏体不锈钢进行了爆炸焊接。从理论上建立了焊接窗口，并考虑爆炸载荷对焊接质量的影响，设计了焊接窗口试验。为了评价焊接质量，对复合材料的显微组织和力学性能进行了系统的研究。结果表明，焊接质量与焊接窗口预测结果吻合较好。焊接界面的微观形貌随焊接工艺参数的变化而变化，EDS分析结果表明，焊接界面处未发现金属间化合物。两种原材料的显微硬度在焊接界面附近均有所增加，且随爆炸载荷的增加而增加。拉剪试验中焊接界面的破坏模式主要是紫铜的强度破坏。
In this work, T2 red copper and high nitrogen austenitic stainless steel (HNASS) were explosively welded for the first time. The welding window was theoretically developed, and the experiment was designed by considering the effect of explosive loading on welding quality. To evaluate the welding quality, the microstructure and mechanical properties of the composite material were systematically investigated. The results showed that the welding quality was in good agreement with the results predicted by the welding window. The micromorphology of the welding interface changed with a varied welding parameter, and no intermetallic compounds were found at the welding interface by EDS analysis. The microhardness of the two raw materials both increased near the welding interface, and the enhancement increased with the explosive loading. The failure pattern of the welding interface in the tension-shear experiments was dominated by the strength failure of the red copper.