期刊
CORROSION SCIENCE
卷 47, 期 7, 页码 1724-1737出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2004.08.019
关键词
copper; coulometry; atmospheric corrosion; sulphidation; oxidation
A coulometric method was used to follow the growth of the corrosion layer on copper, in well defined conditions, by varying the H2S concentration, the temperature and the level of relative humidity. A high H2S concentration favours the formation of both, oxide and sulphide. Copper oxide was found to be more sensitive to humidity than copper sulphide. Thus corrosion compounds enriched in oxides instead of sulphides were observed at high relative humidity. This behaviour is discussed on the basis of a different mechanism of formation for the two copper compounds. (c) 2004 Elsevier Ltd. All rights reserved.
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