| 摘要 |
This invention deals with an oxide/lubricant composite coating on lightweigh t materials (Al-, Mg and Ti-alloys) with multifunctionality in terms of high hardness, l ow friction, thermal barrier, and high corrosion resistance. The oxide coating matrix wit h certain porosity and roughness is synthesized by a plasma process in an electrolyte. The solid lubricant (graphite, MoS2) is incorporated into the oxide coating matrix sai d by rubbing the solid lubricant against the relatively porous and rough oxide coating surface during the coating growth. The composite coating finally consists of low frictional lubricant (graphite, MoS2) embedded in hard, low thermal conductive, and anti-corrosiv e oxide coating matrix. The present invention is particularly applicable for enhancement in wear and corrosion protections for lightweight metals and alloys used in said engine, transmission case, pulley, air condition compressor, and brake system.</SDOA B>
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