Atmospheric corrosion of magnesium alloys: Influence of temperature, relative humidity, and chloride deposition
2004 (English)In: Corrosion, ISSN 0010-9312, E-ISSN 1938-159X, Vol. 60, no 4, p. 356-361Article in journal (Refereed) Published
Abstract [en]
Laboratory tests have been performed to determine how climatic parameters, e.g., relative humidity, temperature, and the amount of sodium chloride (NaCl), influence the corrosion rate of magnesium alloys AZ91D (UNS M 11916) and AM50 (UNS M 10500). The effect of the surface state also has been investigated. The exposures were performed at 75%. 85%. and 95% relative humidity (RH) and at 25°C and 35°C. The amount of NaCl ranged from 14 μg cm-2 to 240 μg cm-2 . The corrosion rate of both materials increased as a function of temperature, RH, and amount of NaCl. A strong influence of the surface state, i.e., as-cast or polished, was observed mainly due to the combined effect of an active surface layer and the roughness of as-cast surfaces. © 2004, NACE International.
Place, publisher, year, edition, pages
National Assoc. of Corrosion Engineers International , 2004. Vol. 60, no 4, p. 356-361
Keywords [en]
Atmospheric corrosion, Automobiles, Chlorine, Climatic parameters, Magnesium alloys, Relative humidity, Atmospheric humidity, Climatology, Parameter estimation, Surface roughness, Active surface layer, Corrosion rate, Relative humidity (RH), Surface state, Deposition, Humidity, magnesium alloy, Salt, temperature effect
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:ri:diva-40446DOI: 10.5006/1.3287743Scopus ID: 2-s2.0-2342472724OAI: oai:DiVA.org:ri-40446DiVA, id: diva2:1359780
2019-10-102019-10-102023-05-26Bibliographically approved