| HUANG Yuan-Iin,ZHU You-Ii,LI Zhan-ming.Failure Analysis of Cast Iron Sealed Ring and Study on MoS2/CrAITiN Bilayer Films Prepared by Unbalanced Magnetron Sputtering on Cast Iron Sealed Ring[J],36(3):1-3 |
| Failure Analysis of Cast Iron Sealed Ring and Study on MoS2/CrAITiN Bilayer Films Prepared by Unbalanced Magnetron Sputtering on Cast Iron Sealed Ring |
| Received:July 11, 2006 Revised:June 10, 2007 |
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| DOI： |
| KeyWord:Unbalanced magnetron sputtering Cast iron MoS2/CrAITiN Tribology Wear Friction reduction |
| Author | Institution |
| HUANG Yuan-Iin |
State Key Laboratory for Remanufacturing, Academy of Armed Force Engineering, Beijing , China |
| ZHU You-Ii |
State Key Laboratory for Remanufacturing, Academy of Armed Force Engineering, Beijing , China |
| LI Zhan-ming |
State Key Laboratory for Remanufacturing, Academy of Armed Force Engineering, Beijing , China |
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| Abstract: |
| Failure mechanism of a sealed ring ( made of cast iron) of some heavy vehicle was analyzed first. Then on the basis of its failure mechanism, MoS2/CrAITiN bilayer films were prepared by unbalanced magnetron sputtering on the sealed ring substrate. The microhardness of the MoS2/CrAITiN bilayer films was 1054. 3HVo.s , about 3 times that of the cast iron substrate. XRD analysis showed that the main composition of the composite films system were CrN, AIN, MoS2 and a little TiN. Block-on-ring wear tests showed that the coefficient of friction was sharply reduced for the treated cast iron surface against 45 steel. Because of the superior lubrication property of the MoS2 above-layer and the wear resistance performance of the high hardness CrAITiN under-layer, the bilayer system shows favorable friction reduction as well as wear resistance. |
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