Abstract
This work presents a phenomenological model to capture the extent of hydrogen accumulated through the corrosion process in high hardness steel (HHS) and experimental evidence of environment-assisted corrosion in HHS through optical and electron micrographs. Experimental evidence showed extensive corrosion in an environmentally aged HHS compared to an as-received HHS with a similar composition, which resulted in hydrogen adsorption at the oxide/metal interface, lowering the critical stress required for the failure. A parametric study on the effects of initial concentration and retention rate shows that the hydrogen retention rate during the corrosion is an influential parameter in hydrogen accumulation, lowering durability.
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