防锈油不同涂油量对冷轧钢板腐蚀行为的影响  

Effect of Different Amounts of Antirust Oil on Corrosion Behavior of Cold-rolled Steel

作　　者：方百友[1] 丁敏贞 卢琳[2] 杨敏娜[2] 高瑾[2] 李晓刚[2] 

机构地区：[1]宝钢新日铁汽车板有限公司,上海201900 [2]北京科技大学腐蚀与防护中心,北京100083

出　　处：《腐蚀科学与防护技术》2015年第1期37-42,共6页Corrosion Science and Protection Technology

摘　　要：采用盐水浸泡实验探讨了0.4,0.9,1.2和1.7 g/m24种涂油量对冷轧钢板腐蚀行为的影响。结果表明,在5%Na Cl溶液中浸泡4 h时,涂油量为1.7 g/m2的钢板保护效率最高,为52.13%,涂油量为0.4 g/m2的钢板保护效率则最低,只有29.2%;浸泡20 h时,1.2和1.7 g/m2两个涂油量的钢板锈蚀等级能保持B级。EIS和Mott-Schottky数据表明,在同一浸泡时间下,涂油量越大的试样其电荷转移电阻越小,载流子密度越大,耐蚀性更好。Salt solution immersion test was employed to examine the effect of four amounts of the coated antirust oil i.e. 0.4, 0.9, 1.2 and 1.7 g/m2 respectively on the corrosion performance of coldrolled steel. The results showed that after immersed in 5%Na Cl solution for 4 h, the 1.7 g/m2 oilcoated steel exhibited the highest protective efficacy 52.13%, the 0.4 g/m2oil-coated steel exhibited the lowest protective efficacy only 29.2%. After immersion for 20 h, only those coated with 1.2 and1.7 g/m2 antirust oil can reach the B rusting grade. The data of EIS and Mott-Schottky tests for the same immersion time showed that the larger amount of the coated oil on the steel had, the smaller the charge transfer resistance and the bigger the carrier density are, which indicated a better corrosion resistance.

关 键 词：防锈油 涂油量 EIS 腐蚀 

分 类 号：TG174[金属学及工艺—金属表面处理]