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向Fe -Cr-Al耐热合金中加入稀土或活性元素 ,可以显著增加Al2 O3 氧化膜与基体间的结合力 ,提高此类合金的抗氧化性 ,国内外学者已提出大量机理来解释稀土对此合金的作用 ,本文中对这些机理进行了综述
Addition of rare earth or active elements to the Fe-Cr-Al heat-resistant alloy can significantly increase the binding force between the Al 2 O 3 oxide film and the matrix and improve the oxidation resistance of the alloys. A large number of mechanisms have been proposed by scholars both at home and abroad to explain the effect of rare earth on The role of this alloy, these mechanisms are reviewed in this paper