摘要
采用新型三元不含B元素的Ni55Fe35Si10钎料对1Cr18Ni9Ti不锈钢进行润湿试验及搭接钎焊试验研究.试验在真空钎焊炉中进行,保温温度分别为1 180℃和1 220℃,保温时间为10 min.对所得润湿试样进行润湿角测量,并用扫描电镜和能谱对钎焊试样微观组织和元素分布行为进行观察和分析.最后,采用显微硬度计测量搭接试样界面硬度的分布趋势.研究结果表明:钎料在1Cr18Ni9Ti不锈钢表面具有良好的润湿能力,在1 180℃和1 220℃时润湿角分别为14.8°和13.1°.钎焊温度增加时,界面金属间化合物数量减少,改善了接头组织,金属间化合物表现出较高的显微硬度值.
A new kind of ternary Ni55Fe35Si10 brazing filler without element B included is developed to join 1Cr18Ni9Ti stainless steel by vacuum brazing method.Wetting and lap joining process are all done to study the properties of the brazing alloy with brazing parameters 1 180 ℃ and 1 220 ℃,respectively,for 10 min.Wetting angles are measured after brazing.The interfacial structure and element distribution behavior are also studied.The results show that the brazing filler has a good wetting property on the 1Cr18Ni9Ti stainless steel surface,and the wetting angles are 14.8°at 1 180 ℃ and 13.1°at 1 220 ℃.The increasing of brazing temperature leads to the decreasing of formation of intermetallic compound,which may improve the joint property.The intermetallic compound indicates a higher microhardness in the brazing seam.
出处
《江苏科技大学学报（自然科学版）》
CAS
北大核心
2011年第5期436-439,共4页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金
浙江省钎焊材料与技术重点实验室开放基金资助项目(1002)
