Hydrogen-induced-cracking in magnesium alloy under cathodic polarisation


The hydrogen-induced-cracking (HIC) behaviour of the magnesium alloy AZ80 was evaluated using the slow strain rate testmethod. The study shows no evidence of HIC in AZ80 alloy after pre-exposure and pre-charging conditions in distilled water. However, under continuous charging in distilled water during straining, the AZ80 alloy shows evidence of HIC. The contradiction reported in the literature is addressed.
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