The process of Fish-eye Flake formation in welding seams of 16 Mng steel is investigated by means of SEM, EDX, IMA, SIMS reflectoscope and X-ray flaw detection as well as metallography technique.

• 运用扫描电镜、x射线能谱仪、离子探针、超声波探伤仪及x射线探伤、金相技术等多种手段对16M_ng钢焊缝中鱼眼白点的形成过程作了综合研究。