The influence of superficially applied oxide powders on the high-temperature oxidation behavior of Cr2O3-forming alloys
作者： G. M. Ecer , R. B. Singh , G. H. Meier
DOI: 10.1007/BF00656095
关键词: Isothermal process 、 Magnesium 、 Cerium oxide 、 Morphology (linguistics) 、 Microstructure 、 Grain boundary 、 Materials science 、 Atmospheric temperature range 、 Metallurgy 、 Oxide
摘要: The effects of superficially applied CeO2, mixed rare earth oxides, Co3O4, and Cr2O3 powders on the isothermal cyclic oxidation Ni-Cr alloys CeO2 MgO Fe-25 wt.% Cr have been studied over temperature range 940–1150°C in pure oxygen dry air. rates both Ni- Fe-base were markedly reduced by application powder. presence also improved scale adherence resulted marked changes morphology. Co3O4 or Fe-Cr produced morphology but did not decrease rate oxidation. These results are interpreted terms influence oxide development microstructure their effectiveness decreasing grain boundary transport Cr2O3.
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