New insights into the corrosion of magnesium alloys - The role of aluminum
Journal article, 2016

The atmospheric corrosion of several Mg-Al alloys was investigated at -4,4 and 22 degrees C. The rate of corrosion increased with increasing temperature and decreasing Al content. Also, the effect of temperature became stronger with increasing Al content. The cast microstructure was found to influence both the average corrosion rate and the temperature dependence of corrosion. The influence of Al on corrosion and on the temperature dependence of corrosion is discussed in terms of the AI enriched layer in the bottom of the surface film and the breakdown of the same layer by chloride ions.

Atmospheric corrosion

Magnesium alloys

Surface film

Aluminum

Author

Mohsen Esmaily

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

D. B. Blucher

SINTEF Materials and Chemistry

Jan-Erik Svensson

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Mats Halvarsson

Chalmers, Physics, Materials Microstructure

Lars-Gunnar Johansson

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Scripta Materialia

1359-6462 (ISSN)

Vol. 115 91-95

Subject Categories

Materials Engineering

Areas of Advance

Materials Science

DOI

10.1016/j.scriptamat.2016.01.008

More information

Latest update

10/29/2018