石红信,赵江辉,李青哲,邱然锋

• 1:河南科技大学材料科学与工程学院

摘要(Abstract)：

为改善接头性能,以100μm厚的铜箔为中间层对钛与低碳钢Q235进行电阻点焊。观察、分析了接头中各特征区域的微观结构,探讨了焊接电流、焊接时间和电极压力对接头熔核尺寸及抗剪载荷的影响。结果表明:以铜为中间层的钛与低碳钢点焊接头熔核内部与端部分别由Ti-Fe系和Cu-Ti系金属间化合物构成。接头的抗剪载荷随焊接电流、焊接时间及电极压力的增大而呈先增大后下降的变化趋势,接头最大抗剪载荷约为4.2 kN。接头的断裂方式主要呈界面撕裂破坏,熔核内部的Ti-Fe金属间化合物呈脆性断裂,端部的Cu-Ti化合物呈准韧性断裂。

关键词(KeyWords)： 钛;低碳钢;中间层;电阻点焊

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51875177)

作者(Author): 石红信,赵江辉,李青哲,邱然锋

DOI: 10.13289/j.issn.1009-6264.2021-0065

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