Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9803915 | Journal of Alloys and Compounds | 2005 | 15 Pages |
Abstract
Mg-Ti alloys with up to 46Â wt.% Ti in solid solution, produced by PVD processing with in situ mechanical working, were subjected to immersion tests in 3Â wt.% NaCl solutions. The corrosion resistance of the alloys, assessed with gravimetric tests, was inferior to that of PVD pure Mg. Corrosive attack was favoured at the sites of mechanical working owing to the different microstructure and the higher Mg concentration at these areas. The corrosive attack resulted in exfoliation of the alloys. The corrosion product contained a mixture of MgO, TiO2 and some Mg(OH)2 at the outermost surface. Although Ti participation in the corrosion products was enhanced, its beneficial affect was overshadowed by the defective nature of the deposits. The surface chemistry of the alloys was studied using the Auger parameter.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
T. Mitchell, S. Diplas, P. Tsakiropoulos,