A Study on Corrosion Inhibitor for Magnesium Alloy
(0) With the aim of evaluating corrosion inhibition for various inhibitors, a new qualitative method for corrosion inhibition effect test for magnesium and magnesium alloys was developed. The change of polarization current density of AZ61 magnesium alloy in electrochemical polarization experiments in alkali aqueous solution with 5mmol/L sodium dodecylsulphate(SDS), phytic acid(PA), ethylenediamine tetraacetic acid(EDTA), p-nitro-benzene-azo-resorcinol(PNBAR), acidum tannicum(AT) or stearic acid(SA) were tested. The SEM-EDS techniques and deposition experiment method were used for further confirmation of the corrosion inhibition. The results showed that those organic compounds which could form the inhibitor-magnesium precipitation in aqueous solution could be used as corrosion inhibitors for magnesium alloys to inhibit the increase of polarization current density as well as the dissolution and oxidation of magnesium alloys effectively.
Magnesium Alloy Electrochemical Deposition Polarization CorrosionInhibitor Phytic acid p-Nitro-benzene-azo-resorcinol
Xu YANG Fusheng PAN Dingfei ZHANG
College of Materials Science and Engineering of Chongqing University, Chongqing 400044, China Chemis College of Materials Science and Engineering of Chongqing University, Chongqing 400044, China
国际会议
重庆
英文
920-926
2008-06-09（万方平台首次上网日期，不代表论文的发表时间）