Article · Metal–oxide interfaces and coatings · High-temperature corrosion and ash
Oxidation and alkali sulfate‐induced corrosion of aluminide diffusion coating with and without platinum
P. A. Knutsson, K. Stiller
Materials and Corrosion 59, 484–488 (2008) · 2 citations
Abstract
A platinum‐free (MDC210) and a platinum‐rich (MDC150L) aluminide diffusion coating applied to a CMSX4 single crystal Ni‐based superalloy were investigated after exposure to sulfate‐induced corrosion and oxidation at 900 °C for a total of 100 h. Weight changes, microstructural, and microchemical analyses of the products were performed by the means of gravimetry, scanning electron microscopy (SEM), energy dispersive X‐ray (EDX), and X‐ray diffraction (XRD). Platinum was found to have a beneficial effect on both the oxidation and corrosion resistance of the coating. In both cases the scale was thicker on the platinum‐free coating. However, the difference in the extent of oxidation of the two coatings was small.
Abstract as indexed by OpenAlex.
BibTeX
@article{knutsson-2008-oxidation-alkali-sulfate,
author = {Knutsson, P. A. and Stiller, K.},
title = {Oxidation and alkali sulfate‐induced corrosion of aluminide diffusion coating with and without platinum},
journal = {Materials and Corrosion},
year = {2008},
volume = {59},
number = {6},
pages = {484--488},
doi = {10.1002/maco.200804131}
}