A ToF-SIMS investigation of the corrosion behavior of Mg alloy AM50 in atmospheric environments
Journal article, 2016
The redistribution of chloride and sodium ions after the NaCl-induced atmospheric corrosion of Mg alloy AM50 was investigated by means of Time-of-Flight Ion Mass Spectroscopy (ToF-SIMS). The samples were exposed at 4 and 22 degrees C in the presence of 400 ppm CO2. The results confirm the presence of less conductive electrolyte, and thus, less movement of ionic species (including sodium and chloride) in the electrolyte layer formed on the surface of samples exposed at the sub-zero temperature. Besides, ToFSIMS analysis showed the presence of an Al-containing surface film formed on the alloy surface after exposure at high relative humidity.
Tof-SIMS Magnesium alloy
Atmospheric corrosion
Electrolyte
Sub zero temperature
Author
Mohsen Esmaily
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Per Malmberg
Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry
Mehrdad Shahabi Navid
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Jan-Erik Svensson
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Lars-Gunnar Johansson
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Applied Surface Science
0169-4332 (ISSN)
Vol. 360 98-106Subject Categories
Materials Engineering
Chemical Sciences
DOI
10.1016/j.apsusc.2015.11.002