Revealing the univariate effect of structural order on the oxidation of ternary alloys: Amorphous vs. crystalline Cu–Zr–Al alloys
Source abstract
Abstract
Abstract A comparative oxidation study of homogeneous amorphous and crystalline Cu28Zr51Al21 alloys is presented to reveal the univariate role of structural order on the oxidation behavior of multi-component alloys. Amorphous Cu–Zr–Al is confirmed much more oxidation-resistant than crystalline Cu–Zr–Al. Preferential oxidation of Zr and Al occurs in both alloys, resulting in an amorphous Zr–Al–O layer and a Cu-enriched region. Cu-enrichment in the crystalline alloy causes Cu9Al4 nanocrystals embedded in the oxide. However, the Cu-enriched region in the amorphous alloy remains amorphous because of its high glass-forming ability. Findings provide design strategies for achieving highly oxidation-resistant alloys.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · High-Temperature Coating Behaviors
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