BFe10-1-1合金PAW接头组织和性能研究  

Study on Microstructure and Properties of PAW Welded Joint of BFe10-1-1 Alloy

作　　者：罗皓[1] 刘甲 崔永杰[1] 贾晓飞[1] 谢岩 朱晓丽 LUO Hao;LIU Jia;CUI Yongjie;JIA Xiaofei;XIE Yan;ZHU Xiaoli(Luoyang Ship Material Research Institute,Luoyang 471039,China;Bohai Shipyard Group Co.,Ltd.,Huludao 125004,China)

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471039 [2]渤海造船厂集团有限公司,辽宁葫芦岛125004

出　　处：《热加工工艺》2019年第23期140-142,146,共4页Hot Working Technology

摘　　要：对7 mm厚BFe10-1-1合金板开展了脉冲等离子弧焊接工艺试验,对焊接接头进行了微观组织观察和力学性能测试。结果表明,采用优化脉冲等离子弧焊工艺可不开坡口实现7 mm厚BFe10-1-1合金板的单面焊双面成形。焊接接头组织无明显缺陷,焊缝为晶粒尺度分布不均匀的枝晶状α组织。接头抗拉强度满足相关标准,弯曲性能良好。BFe10-1-1合金等离子弧焊接技术具有良好的应用前景。The pulse plasma arc welding experiments of 7 mm thick BFe10-1-1 plate were conducted.The microstructure of the welded joint was observed and mechanical properties of the welded joint were tested.The results show that one side welding both sides formation of 7 mm thick BFe10-1-1 alloy plate without bevel preparation can be successfully obtained by using the optimized pulse plasma arc welding process.No obvious defect can be found in the welded joint.The weld microstructure consists of dendriticαwith uneven grain size distribution.The tensile strength of welded joint can meet relevant standards and the bending performance is good.Plasma arc welding technology of BFe10-1-1-alloy has a promising future.

关 键 词：脉冲等离子弧焊接 微观组织 力学性能 

分 类 号：TG456.2[金属学及工艺—焊接] TG457.13