| ZHANG Ying,LI Shu-ying.Effect of Content of Al203 0n Structure and Wear Resistance of Nano-composite Coating[J],37(3):38-40,74 |
| Effect of Content of Al203 0n Structure and Wear Resistance of Nano-composite Coating |
| Received:March 27, 2008 Revised:June 10, 2008 |
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| DOI： |
| KeyWord:Composite phosphate coating Nano-Al203 Hardness Tribological function Phosphate solution Wear resistance |
| Author | Institution |
| ZHANG Ying |
School of Chemical Enginering, Dalian University of Technology, Dalian , China |
| LI Shu-ying |
School of Chemical Enginering, Dalian University of Technology, Dalian , China |
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| Abstract: |
| Nanometer Al203 composite phosphate film was formed on the surface of mild steel by adding Al203 nano-particles into the phosphate solution, which increased the hardness and wear resistance, which is a new method for phosphating treatment of gears, piston rings, bearing holders, compressor and other movement bearing items which need stronger tribological function. The effects of nano-Al203 particle content in the phosphate solution on the nano-particle content, microstructure hardness and wear resistance of the composite coating were studied by electro probe, SEM, micro-rigidity apparatus and UMT-2 micro-wear test machine. The results show that the composite volume and hardness of the composite coating are improved with the increase of the nano-particles in the phosphate solution, surface lubricity and antifriction of composite coating are enhanced. The nano-composite coating has the best wear resistance and antifriction function when the nano-particle content in the solution is lOg/L, above which the wear resistance and antifriction function decreas |
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