Characterization of Graphene Coatings on 8620 Alloy Additive Manufactured Steel

Published In

Microscopy Society of America

Document Type

Citation

Publication Date

7-22-2023

Abstract

Selective laser melting (SLM) is one of the additive manufacturing (AM) processes which create dense components with high control over the alloy compositions [1]. 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 [2]. 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.

Rights

© The Author(s) 2023

DOI

10.1093/micmic/ozad067.739

Persistent Identifier

https://archives.pdx.edu/ds/psu/40754

Publisher

Oxford University Press

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