The Mechanism of Corrosion of Steel 304L in the Presence of Copper in Industrial Installations / Mechanizm Korozji Stali Austenitycznej 304L W Obecności Miedzi W Instalacjach Przemysłowych

Archives of Metallurgy and Materials

M. B. Lachowicz¹  M. M. Lachowicz² 

[1] Department of Materials Science, Strenght Materials and Welding, 25 Smoluchowskiego Str., 50-371 Wroclaw , Poland;Wroclaw University of Technology, Faculty of Mechanical Engineering;Wroclaw University of Technology, Faculty of Technology and Life Sciences, 9 Batorego Str., 59-220 Legnica, Poland

关键词: Keywords: austenitic steel;    copper;    pitting corrosion;    mechanism of corrosion;   

DOI  :  10.1515/amm-2015-0429

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

This paper presents the mechanism of corrosion of austenitic steel in the presence of copper. It has been found that when corrosion occurs, the presence of copper in the corrosive solution in the neighbourhood of austenitic steel results in the intensification of the corrosion processes. In the macroscopic scale, austenitic steel constitutes a cathode, but since copper precipitates can deposit on it, the steel can locally pass to the active state and become an anode in the places where copper deposited, which leads to its local corrosion due to galvanic corrosion.

【 授权许可】

Unknown