Compositional dependence of high temperature oxidation resistance in the L12-strengthened high-thermostability copper alloys
Source abstract
Abstract
Oxidation resistance determines the applicability in high temperature atmospheric environment of the novel heat-resisting cuboidal L1 2 -γ` phase coherent precipitation strengthened Cu-Ni-Al alloys, and it needs to be systematically evaluated in a wide composition range. The results indicate that the oxidation behavior of the Cu 1-x(Ni 3/4Al 1/4) x alloys exhibits a strong composition dependence, displaying excellent oxidation resistance at 850 °C when x is higher than 25 at%. From multi-aspects of atom-phase-alloy, combining the microstructural investigation and first principles calculation, the formation of Al 2O 3 protective layer and the synergistic effect of the basic components are crucial factors for the oxidation resistance of the alloys.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · Advanced ceramic materials synthesis · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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