Interfacial reactions between molten Al and a Co–Cr–Mo alloy with and without oxidation treatment |
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| Authors: | N. Tang Y.P. Li S. Kurosu H. Matsumoto Y. Koizumi A. Chiba |
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| Affiliation: | aGraduate School of Engineering, Tohoku University, Sendai 980-8577, Japan;bInstitute for Materials Research, Tohoku University, Sendai 980-8577, Japan |
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| Abstract: | The effect of the formation of an oxide layer on the interfacial reactions between a Co–Cr–Mo alloy (CCM alloy) and molten Al is investigated. In the absence of an oxide layer, the CCM alloy reacted rapidly and an interfacial two-layer structure formed between the CCM alloy and molten Al. Upon oxidation, a uniform (Cr,M)2O3 (M: doped elements) oxide layer formed on the CCM alloy surface, which effectively inhibited the reaction between the CCM alloy matrix and molten Al for more than 2 h. |
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| Keywords: | A. Aluminum A. Cobalt A. Alloy C. Interfaces C. Oxide coatings |
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