Abstract
An Y2O3-modified chromizing coating was produced by chromizing an as-electrodeposited Ni-Y2O3 composite film using pack cementation method at 1100°C for 3hr. For comparison, chromizing was also performed in the same condition on an as-deposited Ni film without Y2O3 particles. Oxidation at 900°C for 120hr showed that compared to the Y2O3-free chromizing coating, the Y2O3-modified chromizing coating exhibited a superior oxidation resistance. The effect of Y2O3 on the chromization and oxidation of the chromizing coating is discussed in detail.
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