pH值对304不锈钢在3.5%NaCl溶液中点蚀过程的影响

叶超, 杜楠, 田文明, 赵晴, 朱丽

Effect of pH on Pitting Corrosion Process of 304 Stainless Steel in 3.5%NaCl Solution

YE Chao, DU Nan, TIAN Wenming, ZHAO Qing, ZHU Li

表1 不同pH值下极化后单个蚀孔的参数

Table 1 Parameters of single pit after polarization at different pH

pH Surface diameter μm Depth μm Base diameter μm Volume μm3 1 145.59 193.95 110.62 1.56×106 4 158.14 234.65 105.48 2.46×106 7 127.13 132.24 91.31 6.72×105 10 76.18 50.37 50.29 9.19×104 14 91.47 91.56 55.64 2.78×105