Abstract

Abstract In this work, suspension high-velocity oxyfuel spraying (SHVOF) with radial injection is shown to be a suitable technique for depositing graphene nanoplatelet layers on stainless steel substrates. The effect of feedstock injection parameters such as flowrate, injection angle, and position are investigated at different flame powers by means of high-speed imaging. In dry sliding wear tests, graphene layers on stainless steel exhibited a friction coefficient of around 0.1 after 1000 cycles and less than 0.3 after 2000 cycles. Compared to uncoated stainless steel, this is an order of magnitude improvement.

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