超低碳奥氏体不锈钢焊接接头耐腐蚀性及环保型化学钝化工艺研究
孙晓光1(),韩晓辉1,张星爽2,张志毅1,李刚卿1,董超芳2
Corrosion Resistance and Environmentally-friendly Chemical Passivation of Welded Joints for Ultra-low Carbon Austenitic Stainless Steel
SUN Xiaoguang1(),HAN Xiaohui1,ZHANG Xingshuang2,ZHANG Zhiyi1,LI Gangqing1,DONG Chaofang2

图6. 304L-HD不锈钢接头在柠檬酸中钝化后的动态极化曲线

Fig.6. Potentiodynamic polarization curves of the matrix (a), weld zone (b) and heat affected zone (c) of 304L stainless steel after manual arc welding and then chemical passivation