表面技术Issue(4)：123-126,131,5.DOI:10.16490/j.cnki.issn.1001-3660.2015.04.022
304不锈钢在氯化钠介质中点蚀缓蚀剂的研究
Study on Inhibitors for the Pitting Corrosion of 304 Stainless Steel in Sodium Chloride Medium
郝震 1戴恒彪 1李广州 1丁毅 1孟宪虎2
作者信息
- 1. 南京工业大学 材料科学与工程学院，南京210009
- 2. 江苏众信绿色管业科技有限公司，南京210012
- 折叠
摘要
Abstract
ABSTRACT:Objective To investigate the inhibition effect of sodium molybdate, sodium gluconaten and their mixtures on 304 stainless steel in sodium chloride medium. Methods Sodium molybdate and sodium gluconate were compounded at different propor-tions to obtain different complex inhibitors, and then electrochemical polarization curve was used to test the pitting potential of 304 stainless steel in 3. 5% NaCl solution in the presence of these types of corrosion inhibitors. Results One-component sodium molyb-date and sodium gluconate exhibited certain inhibitory effects for pitting on 304 stainless steel in 3. 5% NaCl medium, and there was significant synergistic inhibition effect between these two corrosion inhibitors. Conclusion The best ratio of the compounded in-hibitor was 2∶1 (27 mmol/L sodium molybdate and 13 mmol/L sodium gluconaten), and the pitting potential could reach 436 mV.关键词
304不锈钢/钼酸钠/葡萄糖酸钠/点蚀电位Key words
304 stainless/sodium molybdate/sodium gluconaten/pitting potential分类
矿业与冶金引用本文复制引用
郝震,戴恒彪,李广州,丁毅,孟宪虎..304不锈钢在氯化钠介质中点蚀缓蚀剂的研究[J].表面技术,2015,(4):123-126,131,5.
