新型镍基EQNiCrFe-13带极堆焊材料性能  

Performance of a new nickel-based EQNiCrFe-13 material for strip surfacing

作　　者：徐锴 宋建廷 冯伟 曹宇堃 贾立超 Xu Kai;Song Jianting;Feng Wei;Cao Yukun;Jia Lichao(Harbin Welding Institute Co.,Ltd.,Harbin 150028,Heilongjiang,China;Harbin Well Welding Co.,Ltd.,Harbin 150060,Heilongjiang,China)

机构地区：[1]哈尔滨焊接研究院有限公司,黑龙江哈尔滨150028 [2]哈尔滨威尔焊接有限责任公司,黑龙江哈尔滨150060

出　　处：《机械制造文摘（焊接分册）》2021年第2期1-5,共5页Welding Digest of Machinery Manufacturing

基　　金：国家科技重大专项资金资助项目(2018ZX06004001)。

摘　　要：从化学成分、力学性能、抗晶间腐蚀能力及高温试验拉伸断口等方面对比分析了新型镍基690合金带极堆焊材料EQNiCrFe-13和EQNiCrFe-7A的差异,同时对SA508-3钢母材进行Z向拉伸试验研究2种堆焊材料与SA508-3钢母材界面的结合强度。研究结果表明,新型690合金由于Mn,Nb含量的提高,其力学性能和抗DDC(Ductility dip cracking)性能优于传统690合金EQNiCrFe-7A。Differences between EQNiCrFe-13 and EQNiCrFe-7A new types of nickel-based 690 alloy strip surfacing materials were compared and analyzed from aspects of chemical composition,mechanical properties,resistance to intergranular corrosion and analysis of tensile fracture through the high-temperature test.And Z-direction tensile test was carried out on base metal of SA508-3 steel to study bonding strength of the interface between the two surfacing materials and SA508-3 steel.The research results showed that the new 690 alloy had better mechanical properties and resistance to DDC than the traditional 690 alloy EQNiCrFe-7A due to increase of Mn and Nb content.

关 键 词：690镍基合金 带极堆焊 高温拉伸试验 

分 类 号：TG423[金属学及工艺—焊接]