Effects of Post-Treatment Process on IVD Al for High Strength Steel
The effect of post-treatment process on IVD Al(ion vapor deposition aluminum)coating for 300M steel,and the influence of IVD Al or post-treatment process in the hydrogen embrittlement about the high strength steel was explored in this article.The results show that shot peening can improve the density of aluminum coating,but single shot peening has no obvious improvement on the corrosion resistance of aluminum coating.Chemical oxidation treatment can convert the surface of aluminum coating into a chromate conversion film with good corrosion resistance,which significantly improves the corrosion resistance of aluminum coating.IVD Al and post-treatment process have no influence in the high strength steel hydrogen embrittlement.
ion vapor deposition aluminumshot peening,chemical oxidation treatmentcorrosion resistance,hydrogen embrittlement
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