酸洗对316L不锈钢表面形貌、耐蚀性能及表面光学常数的影响

伊光辉, 郑大江, 宋光铃

Influence of Acid Pickling on Morphology, Optical Parameters and Corrosion Resistance of 316L Stainless Steel

YI Guanghui, ZHENG Dajiang, SONG Guangling

表2 样品在3.5%NaCl溶液中EIS结果的拟合参数

Table 2 Fitting parameters of the EIS results of the samples in 3.5%NaCl solution.

Pickling time / min Rs (Ω·cm2) / (error%) Y0 (F/s(1-n)) / (error%) n / (error%) Rp (Ω·cm2) / (error%) 0 51.86 (0.8757%) 2.88×10-5 (0.89%) 0.8506 (0.25%) 2.99×105 (3.01%) 10 47.63 (0.57%) 9.38×10-6 (0.48 %) 0.901 (0.12%) 4.49×106 (5.66%) 20 51.48 (2.28%) 1.41×10-5 (1.90%) 0.8585 (0.50%) 2.16×106 (35.89%) 30 51.98 (0.95%) 1.18×10-5 (0.82%) 0.9098 (0.21%) 8.15×106 (21.28%) 40 49.37 (0.59%) 1.68×10-5 (0.53%) 0.8952 (0.14%) 2.62×106 (6.62%) 50 51.89 (0.27%) 1.52×10-5 (0.21%) 0.8101 (0.06%) 2.27×107 (24.80%)