紫铜-碳钢磁脉冲焊接接头界面形貌研究

发布时间：2019-06-14 02:10

【摘要】：为探索紫铜-碳钢磁脉冲焊接(MPW)接头界面形貌等微观特征,本文进行了T2紫铜管和50#钢管的磁脉冲焊接试验,在电压11 k V、径向间隙2.2 mm、重叠面积比3/4的条件下,获得了T2铜管-50#钢管冶金连接接头.通过光学金相、SEM/EDS、显微硬度和纳米压痕试验,重点研究了接头界面形貌、基体元素扩散和硬度分布.结果表明:接头由未焊合区、波状界面结合区、平直界面结合区等特征区域构成,连接区长度达到5 mm;波状结合区界面波长约为60μm,波峰幅值高约20μm;平直界面结合区基体元素扩散区(过渡区)宽度约2μm,而在波状界面结合区,扩散区宽度可达6μm;接头铜侧硬度相对初始值提高50%,最高硬度值出现在靠近界面的50号钢侧,而界面硬度介于两种母材之间.
[Abstract]:In order to explore the interface morphology and other microscopic characteristics of copper-carbon steel magnetic pulse welding (MPW) joint, the magnetic pulse welding test of T2 copper tube and 50 # steel pipe was carried out in this paper. under the condition of voltage 11 kV and radial clearance 2.2 mm, overlap area ratio 3 鈮，

本文编号：2499013