新型阻燃Ti40合金TIG焊焊接性能研究  

Mechanical Properties of TIG Welded Joint of New Burning-Resistance Ti40 Alloy

作　　者：张文扬[1] 李艳[1] 李小飞[1] 邓继雄[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《航空材料学报》2006年第3期321-322,共2页Journal of Aeronautical Materials

摘　　要：研究新型阻燃钛合金Ti40合金的TIG(tungest inert gas)焊焊接性能,采用金相、SEM等方法分析Ti40合金焊缝及热影响区的组织变化。结果表明,Ti40合金钨极氩弧焊焊缝室温、高温拉伸性能良好,冲击性能较低。焊接之后的热处理制度对组织有一定的改善。经500℃×100h热暴露后,晶界粗化,为连续α相。Ti40 alloy welding property was studied and its welding texture was analyzed by using metallography and SEM methods.The result showed that Ti40 joint had good room-temperature and high-temperature property,but had lower toughness.Heat treatment after welding could improve microstructure.After 500℃×100h exposure,α precipitation with short bar or ball shaped was found.Crystal boundary was coarsened with α phase.

关 键 词：TI40 TIG 焊接性能 

分 类 号：TG406[金属学及工艺—焊接]