Abstract

External loading will significantly change the elemental diffusion and oxide growth during oxidation. Taking the effects of external loading, including static stress loading and plastic strain loading, into consideration is a necessity to reasonably evaluate the oxidation resistance of metallic glasses in engineering applications. In this chapter, we discuss the oxidation behavior of metallic glasses under external loading conditions, both with static stress loading and plastic strain loading. The evolution of surface morphologies and microstructures under the combined action of oxidation and deformation is characterized. It is found that compressive static stressing can hinder oxidation while tensile static stress loading can enhance the oxidation of metallic glasses. Plastic strain will lead to the fracture of preexisting oxide scales, thus seriously deteriorating the surface finish and dimensional accuracy of parts.

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