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Influence of Black Oxide Coating on Micropitting and ZDDP Tribofilm Formation
Published in Tribology Transactions, 2022
Mao Ueda, Hugh Spikes, Amir Kadiric
Black oxide was applied as a uniform thickness conversion coating on the rough counterface (AISI 52100 steel disc in the present tests). This very slightly reduced the surface roughness compared to a fresh uncoated surface, but this roughness reduction was insufficient to significantly affect micropitting.