Characterization of Graphene Coatings on 8620 Alloy Additive Manufactured Steel
Microscopy Society of America
Selective laser melting (SLM) is one of the additive manufacturing (AM) processes which create dense components with high control over the alloy compositions . The 8620 alloy is a low carbon, nickel chromium molybdenum alloy steel which is typically used for machine parts. However, its high iron content (∼98%) makes it very susceptible to oxidation. This research focuses on developing graphene surface coatings for 8620 and other iron-rich steels. In this study, AM8620 samples made by SLM were used. Previously, we demonstrated the coating of steel surfaces by a liquid-exfoliated graphene flakes (EGFs) method . In this report, we present a graphene coating formed by directly growing graphene on the AM steel surface using a chemical vapor deposition (CVD) method. The effects of the surface morphologies and microstructure of the AM8620 steel on graphene coatings in relation to the two coating methods were characterized.
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Oxford University Press
Hood, K., Ahmed, S., & Jiao, J. (2023). Characterization of Graphene Coatings on 8620 Alloy Additive Manufactured Steel.