王楠楠,李罡,祝士博,石红信,邱然锋,姚怀

• 1:河南科技大学材料科学与工程学院
• 2:中国民用航空飞行学院洛阳分院
• 3:龙门实验室

摘要(Abstract)：

以Nb箔和Ni箔作为中间层对TA2钛板和Q235钢板进行了电阻点焊，分析了接头熔核区域的显微组织特征，探讨了焊接电流和Ni箔厚度对熔核直径和抗剪载荷的影响。结果表明：所得接头的熔核有两类模式，一是在钛侧和钢侧分别形成了独立的熔核，另一是在接头的界面区形成了一个跨界面的熔核；在前一类型接头中，残余Nb层阻碍了Ti与Fe反应，在钢侧熔核和残余Nb之间生成了(Fe, Ni)_6Nb_7等新相层；在后一类型接头中，中间层Nb局部熔断而失去阻隔作用，形成由TiFe和α-Ti构成的混合熔核；中间层为0.02 mm厚Nb和0.02 mm厚Ni、焊接电流为8 kA时，所得接头的抗剪载荷最大，为6.2 kN。

关键词(KeyWords)： 钛;低碳钢;Nb-Ni中间层;电阻点焊

Abstract:

Keywords:

基金项目(Foundation): 河南省国际科技合作项目(242102521037,252102521088);; 龙门实验室前沿探索课题(LMQYTSKT010)

作者(Author): 王楠楠,李罡,祝士博,石红信,邱然锋,姚怀

DOI: 10.13289/j.issn.1009-6264.2025-0044

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