Zirconium was transferred from the flux to the weld metals through adding Fe-Zr alloy in the weld flux.The influence of zirconium on microstructure and toughness of X70 steel weld metal was studied.

• 摘要通过在埋弧焊焊剂中添加铁锆合金粉末，以此向焊缝金属过渡锆元素，研究了金属锆对X70钢焊缝金属微观组织和性能的影响。