The Corrosion Behaviour of Mg Alloy AZ91D/TiCp Metal Matrix Composite
The corrosion of a magnesium-based MMC, comprising a AZ91D alloy matrix and 5 vol% titanium carbide particles has been studied in saline environments, using immersion and electrochemical tests. Corrosion was localized initially and developed subsequently into general corrosion , the local corrosion rate of AZ91D/TiCp being faster than diecast AZ91D due to the formation of less protective corrosion products. Galvanic corrosion for AZ91D/TiCp, due to coupling of the matrix and reinforcement, was more severe than diecast AZ91D.
W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo
S. Jia et al., "The Corrosion Behaviour of Mg Alloy AZ91D/TiCp Metal Matrix Composite", Materials Science Forum, Vols. 488-489, pp. 705-708, 2005