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304不锈钢激光深熔焊元素蒸发及焊缝合金含量变化

刘桐1,杨立军1,2,邱文聪1,杨瑞霞1,李桓1,2

刘桐1,杨立军1,2,邱文聪1,杨瑞霞1,李桓1,2. 304不锈钢激光深熔焊元素蒸发及焊缝合金含量变化[J]. 焊接学报, 2018, 39(2). DOI: 10.12073/j.hjxb.2018390030
引用本文: 刘桐1,杨立军1,2,邱文聪1,杨瑞霞1,李桓1,2. 304不锈钢激光深熔焊元素蒸发及焊缝合金含量变化[J]. 焊接学报, 2018, 39(2). DOI: 10.12073/j.hjxb.2018390030

304不锈钢激光深熔焊元素蒸发及焊缝合金含量变化

  • 摘要: 通过模拟和试验的方法对激光深熔焊304不锈钢焊缝合金成分变化进行了研究. 利用电子探针X射线显微分析对母材及焊缝中的Fe,Cr,Mn,Ni元素含量进行分析. 基于对焊接熔池温度场和流场的计算,建立了深熔激光焊元素蒸发和焊缝合金含量变化的模型. 结果表明,深熔激光焊元素蒸发主要发生在小孔及熔池表面,其中小孔内金属蒸发强烈,而小孔外的熔池表面蒸发量较小. 与母材相比,焊缝中Mn,Cr元素含量减少,而Ni,Fe元素含量增加. 焊缝合金含量变化随焊接功率增大而减小,但对于焊接速度的改变不敏感. 计算结果与试验检测结果吻合良好.
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  • 期刊类型引用(1)

    1. 陈月峰,王树昂,赵飞,陈金强,程定富,孙云翔. 自动焊图像处理技术的发展及应用研究. 焊接技术. 2021(03): 1-5 . 百度学术

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  • 收稿日期:  2017-05-07

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