摘要
分析了HP45NbTi高温耐热合金的焊接性,采用手工钨极氩弧焊,用镍基焊丝打底、25-35Nb焊丝填充并盖面的焊接工艺,对该合金炉管进行对接焊,获得了其常温和高温下都满足使用要求的焊接接头,并对焊接接头的显微组织进行了观察分析。
The weldability of heat-resistant alloy HP45NbTi was investigated. The root passes were welded by manual TIG with nickel based wire, filling with wire 25-35Nb. The mechanical properties of the welded joint were examined and up to the standard. The microstructure of the welded joint was also observed before and after welding.
出处
《热加工工艺》
CSCD
北大核心
2011年第3期163-164,167,共3页
Hot Working Technology
关键词
炉管
高温合金
电弧焊
显微组织
furnace tube
high temperature alloy
electric arc welding
microstructure
