3003铝合金焊接管开裂的原因  

Fracture analysis of 3003 aluminum alloy welded tube

作　　者：朱冉冉 杨书瑜 韩逸 钱维锋 李秀磊 ZHU Ranran;YANG Shuyu;HAN Yi;QIAN Weifeng;LI Xiulei(Chinalco Materials Application Research Institute Co.,Ltd.,Suzhou 215026,China;Chinalco Materials Application Research Institute Co.,Ltd.,Beijing 102204,China)

机构地区：[1]中铝材料应用研究院有限公司苏州分公司,江苏苏州215026 [2]中铝材料应用研究院有限公司,北京102204

出　　处：《轻合金加工技术》2024年第2期45-49,共5页Light Alloy Fabrication Technology

摘　　要：借助扫描电镜和金相显微镜,通过断口形貌观察、能谱分析、显微组织分析及晶粒观察,探明3003铝合金焊接管开裂原因。结果表明:3003铝合金焊接管开裂是焊接温度过高导致铝管局部过烧,基体产生内应力引起的。The cause of the fracture of the 3003 aluminum alloy welded tube was found out through SEM and OM observation of fracture morphology,energy spectrum analysis,metallographic analysis and grain observation.The results show that excessive welding temperature causes localized overheating of the aluminum tube,resulting in internal stress on the substrate and ultimately leading to cracking of the 3003 aluminum tube.

关 键 词：3003铝合金 焊接 过烧 

分 类 号：TG146.21[一般工业技术—材料科学与工程]