Melquisedec Vicente-Mendoza, Alma Mora-García, Juan Muñoz-Saldaña, Fernando Juárez-López
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Abstract
Spray parameters were fixed to depositing a MCrAlY coating by HVOF process on IN-708 substrate. The deposited coatings exhibited a microstructure with characteristic splats and β and γ phases. An MOCVD process was subsequently carried out to deposit a thin alumina layer on the sprayed MCrAlY coating. Cyclic oxidation tests were conducted at high temperature on the alumina/MCrAlY coating system. Both SEM and XRD analyses were used to characterize the thermally grown oxide after cyclic oxidation. A kinetic analysis was done to determinate the behaviour of the alumina/MCrAlY coating system during oxidation.
期刊介绍：
Oxidation of Metals is the premier source for the rapid dissemination of current research on all aspects of the science of gas-solid reactions at temperatures greater than about 400˚C, with primary focus on the high-temperature corrosion of bulk and coated systems. This authoritative bi-monthly publishes original scientific papers on kinetics, mechanisms, studies of scales from structural and morphological viewpoints, transport properties in scales, phase-boundary reactions, and much more. Articles may discuss both theoretical and experimental work related to gas-solid reactions at the surface or near-surface of a material exposed to elevated temperatures, including reactions with oxygen, nitrogen, sulfur, carbon and halogens. In addition, Oxidation of Metals publishes the results of frontier research concerned with deposit-induced attack. Review papers and short technical notes are encouraged.
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