粉煤灰活性剂对LD10钨极氩弧焊接头性能的影响  

Effect of fly ash active flux on welded joint properties of LD10 by TIG

作　　者：张勇[1] 罗建民[2] 綦秀玲[1] 

机构地区：[1]辽宁工程技术大学材料科学与工程学院,辽宁阜新123000 [2]中国兵器科学研究院宁波分院,浙江宁波315103

出　　处：《兵器材料科学与工程》2013年第5期74-77,共4页Ordnance Material Science and Engineering

摘　　要：为提高高强铝合金钨极氩弧焊的效率,以LD10铝合金为实验板件,将粉煤灰作为活性剂涂敷在试件表面,采用TIG方式进行焊接。研究粉煤灰作为活性剂对焊缝形貌、微观组织和接头显微硬度的影响。结果表明:活性剂的涂敷均会使焊缝熔宽增加、熔深加大,添加粉煤灰活性剂焊件的焊缝硬度和过时效软化区的硬度高于常规焊接件。The active flux of fly ash was utilized to increase the TIG welding efficiency of high strength aluminum. The effect of active flux on the appearance, microstructure and microhardness of joint was studied by metallographic observation and hardness test. The experiment results show that the weld width and depth are increased, and the hardness of welded bead and HAZ with fly ash as active flux is higher than that without active flux.

关 键 词：活性剂 LD10 粉煤灰 

分 类 号：TG456.9[金属学及工艺—焊接]