摘要
采用激光焊对2 mm和3 mm厚的YG20硬质合金和45钢进行不填充材料直接对接焊接。焊后对焊接接头进行取样,用扫描电镜对焊接接头组织进行观察,并分析了马氏体组织的形成原因。
The laser butt welding of 2 mm and 3 mm thick YG20 cemented carbide and 45 steel was carried out without filling material.After welding, the welded joints were sampled, the microstructure of the welded joints was observed by SEM, and the cause of martensite formation was analyzed.
作者
张雨珍
李宝明
郑崔崔
徐培全
ZHANG Yuzhen;LI Baoming;ZHENG Cuicui;XU Peiquan(College of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《热加工工艺》
北大核心
2019年第17期23-25,共3页
Hot Working Technology
基金
国家自然科学基金项目(51475282)
创新项目(17KY0515)
关键词
45钢
激光焊
显微组织
马氏体
45 steel
laser welding
microstructure
martensite
