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3 不同酸洗时间316L不锈钢样品的表面氧化物成分

Table 3 Surface oxide composition of 316L stainless steel coupons after different pickling time (atomic fraction / %)

Pickling time / min FeO (Fe3O4) Cr2O3 Cr2O3 / (Cr2O3+FeO (Fe3O4)) 0 9.67 4.51 31.81 10 5.16 5.38 51.04 20 7.18 3.85 34.9 30 8.23 4.53 35.5 40 8.68 3.2 26.94 50 7.55 3.84 33.71