CAST PRODUCT HAVING ALUMINA BARRIER LAYER
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United States of America Patent
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app pub date -
Dec 17, 2014
filing date -
Mar 28, 2014
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Abstract
The present invention provides a cast product that can further enhance the stability of an alumina barrier layer and can exhibit further superior oxidation resistance, carburization resistance, nitriding resistance, corrosion resistance, and the like when used under a high-temperature atmosphere. The cast product according to the present invention is a cast product having an alumina barrier layer including an aluminum oxide on a surface of a matrix, and the aluminum oxide is (Al(1-x)M(x))2O3, where M is at least one of Cr, Ni, Si, and Fe, and x satisfies a relationship 0
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