Corrosion behaviour of copper containing low alloy steels in sulphuric acid |
| |
Authors: | J.H. Hong S.H. Lee J.G. Kim J.B. Yoon |
| |
Affiliation: | 1. Department of Advanced Materials Science and Engineering, Sungkyunkwan University, 300 Chunchun-Dong, Jangan-Gu, Suwon 440-746, South Korea;2. POSCO Technical Research Lab., 1 Goedong-Dong, Nam-Gu, Pohang 790-785, South Korea |
| |
Abstract: | The influence of the addition of Cu on the corrosion resistance of low alloy steel in sulphuric acid was investigated using AC and DC electrochemical methods and a weight loss test, which took place in 10 wt% H2SO4 solution at room temperature. The electrochemical measurements indicated that the corrosion rate is suppressed by the addition of Cu due to a higher hydrogen overpotential and prevention of the active dissolution. Surface analyses (XPS, EPMA and SEM) of the corroded surfaces conducted after the immersion test indicated that the rust layer formed on the Cu containing steels was enriched with Cu compounds. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|