Mn-Si 系多层焊焊缝侧弯形貌的研究

Study on Pattern of Side Bend of Mn Si Multi layer Weld

本文通过焊接接头侧弯试验、光学显微镜和扫描电镜分析，对Ｍｎ－Ｓｉ系多层焊焊缝侧弯形貌进行了研究，探讨了侧弯形貌与焊接热循环、焊接线能量及显微组织之间的关系。研究表明，焊缝侧弯形貌分析是了解Ｍｎ－Ｓｉ系多层焊焊缝变形能力的一种直观有效的途径。

The pattern of side bend of Mn Si multi layer weld is investigated with side bend test of weld joint, optical microscope and scanning electron microscope analysis. The relationship between weld thermal cycle, heat input and microstructure with pattern of side bend is also discussed. The results show that this study provided is an evident effective way for understanding the deformation ability of Mn Si multi layer weld.