Influence of minor Fe addition on the oxidation performance of Mo-Si-B alloys

Abstract

Multiphase Mo-Si-B alloys composed of Mo, Mo 3Si and Mo 5SiB 2 phases offer excellent high-temperature mechanical properties with the ability to resist oxidation via production of a borosilica surface layer. In the current study the effects of Fe addition were examined on the oxidation performance of Mo-2Si-1B and Mo-3Si-1B (wt.%) alloys. The analysis of the results indicated that the Fe addition limits the initial oxidation stage appreciably, primarily by enhancing the fluidity of the borosilica.

Document Type

Article

DOI

https://doi.org/10.1016/j.scriptamat.2012.08.019

Keywords

Amorphous oxides, Mo-Si-B alloys, Oxidation, Refractory alloys, Silica glass

Publication Date

12-1-2012

Journal Title

Scripta Materialia

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