摘要
对厚环状异种合金钢管材进行了连续驱动摩擦焊接试验。结果表明:随着焊接时间增加,飞边量增加,焊缝微观组织细化;超过6 s后,焊接界面发生过烧现象,微观组织变为粗大的马氏体。通过对不同焊接时间下焊接接头的力学性能检测发现,6 s时拉伸和冲击性能最优。
The continuous drive friction welding tests of thick annular dissimilar alloy steel tubes were carried out. The results show that with the increase of welding time, the overlap increases, and the weld microstructure is refined. When the time is more than 6 s, the welding interface occurs overburning, and the microstructure transforms to coarse martensite. Through the mechanical properties test of welded joints under different welding time, it is found that when the welding time is 6 s, the tensile and impact properties are optimal.
出处
《热加工工艺》
CSCD
北大核心
2017年第3期192-194,共3页
Hot Working Technology
基金
国家自然科学基金项目(51505379)
国家重点实验室开放课题项目(SKLSP201505)
陕西省教育厅专项科研计划项目(15JK1575)
关键词
摩擦焊
摩擦时间
微观组织
力学性能
friction welding
friction time
microstructure
mechanical properties
