journal article·2013-10

Codeposition of Co–Al–Y on nickel base superalloys by pack cementation process

Min Qiao, Chungen Zhou

Corrosion Science· Volume 75
Publisher page

Abstract

Abstract Based on the results of thermochemical analysis, NH 4 I + NH 4 Cl proved to be a more favorable activator for codepositing Co–Al–Y compared to NH 4 I or NH 4 Cl. Coating deposition experiments were also demonstrated that codeposition of Co–Al–Y with high concentration of Co and minute quantities of Y could be achieved at 1323 K in the NH 4 I + NH 4 Cl activated packs. The coating exhibited the best cyclic oxidation resistance at 1323 K when NH 4 I + NH 4 Cl were used as activator.
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Research context

OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · Metallurgical and Alloy Processes

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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