中国激光, 2017, 44 (11): 1102005, 网络出版: 2017-11-17
中间层对304不锈钢/铌激光焊接头组织及性能的影响 下载: 596次
Effect of Interlayer on Microstructures and Properties of 304 Stainless Steel/Nb Joints by Laser Welding
激光技术 激光焊 铌 304不锈钢 中间层 接头强度 laser technique laser welding niobium 304 stainless steel interlayer joint strength
摘要
利用纯铜、纯银、纯钨、纯钒、纯钽和纯钼等不同金属材料作为填充金属, 采用预置中间层的方法, 进行了304不锈钢(304 SS)与铌的激光焊接试验。结果表明, 在被选择的填充金属中, 铜和银作为中间层可以实现304 SS与铌的焊接, 前者接头强度最高, 强度峰值达到250 MPa, 是最优填充金属; 随着铜层厚度的增加, 铜层对于Fe2Nb的阻碍作用增强, 接头强度提高, 但是铜层厚度不能过大。
Abstract
With different pure metal materials such as copper, silver, tungsten, vanadium, tantalum and molybdenum as filler metals , the experiments of laser welding of 304 stainless steel (304 SS) and niobium are carried out by using the preset interlayer method. The results show that, among all the filler metals to be selected, Cu and Ag as interlayer can be used to realize the connection between 304 SS and niobium. The joint strength with the former as interlayer is the highest which reaches up to 250 MPa, thus the optimum filler metal is Cu. The hindering effect of Cu interlayer on the formation of Fe2Nb increases with the increase of Cu interlayer thickness, and so does the strength of joints, but the Cu interlayer cannot be too thick.
石铭霄, 陈书锦, 胡庆贤, 刘大双, 周方明, 李瑞峰, 赵健. 中间层对304不锈钢/铌激光焊接头组织及性能的影响[J]. 中国激光, 2017, 44(11): 1102005. Shi Mingxiao, Chen Shujin, Hu Qingxian, Liu Dashuang, Zhou Fangming, Li Ruifeng, Zhao Jian. Effect of Interlayer on Microstructures and Properties of 304 Stainless Steel/Nb Joints by Laser Welding[J]. Chinese Journal of Lasers, 2017, 44(11): 1102005.