The effect of grain refinement on the adhesion of an alumina scale on an aluminide coating

作者: X. Tan , X. Peng , F. Wang

DOI: 10.1016/J.CORSCI.2014.04.022

关键词:

摘要: To understand the effect of grain refinement on thermally grown alumina scale adhesion to metal substrate, two d-Ni2Al3 coatings, one coarse-grained (� 70 lm) and other ultrafine-grained (generally below � 500 nm), were prepared. The cyclic oxidation in air at 1100 C shows that (UFG) coating is better resistant than (CG) due formation a more adherent scale. latter intrinsically correlated with fact aluminide helps increase oxide/metal strength through route prevent largesized voids interface.

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