Microstructure and oxidation of NiCr alloys studied by analytical in situ environmental TEM
Source abstract
Abstract
The microstructure and oxidation properties from bulk material to atomic scale of NiCr alloys with different Cr contents from 10 to 50 at% were systematically studied. The oxidation mechanism in NiCr alloys with different Cr contents was analysed by in-situ environmental transmission electron microscopy. The increased porosity of the NiO/NiCr 2O 4 oxide layer in the 10 at% Cr-containing alloy seriously decreases its oxidation resistance, and Cr contents between 20 and 40 at% offer outstanding oxidation resistance due to the inhibited growth of NiO/NiCr 2O 4 oxides. Ni-50 at%Cr alloy exhibit poor corrosion resistance due to short-circuit oxidation paths by its FCC/BCC dual-phase structure.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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