| ZHANG Wen-feng,ZHENG Xiao-hu.Microstructure and Morphology of Worn Surface of Ni-ZrO2Nano-composite Electroformings[J],39(4):21-24 |
| Microstructure and Morphology of Worn Surface of Ni-ZrO2Nano-composite Electroformings |
| Received:March 27, 2010 Revised:August 10, 2010 |
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| DOI： |
| KeyWord:nano-composite electroforming surface morphology microstructure wear resistance abrasion mechanism |
| Author | Institution |
| ZHANG Wen-feng |
1.Department of Mechanical and Electrical Engineering, Suzhou Vocational College, Suzhou , China;2.College of Mechanical and Electrical Engineering, Xi'an Technological University, Xi'an , China |
| ZHENG Xiao-hu |
Department of Mechanical and Electrical Engineering, Huaiyin Institute of Technology, Huaian , China |
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| Abstract: |
| The Ni-ZrO2nano-composite electroformings were prepared by composite electroforming. The surface morphology and microstructure were analyzed by SEM and TEM. Under dry friction conditions, the effect of nano-particle content in solution on the wear resistance of the nano-composite electroformings was studied. Furthermore, the surface morphology of worn surface and abrasion mechanism were investigated. The study results show that owing to the existence of nano-ZrO2particles in the composite electroformings, the grain size of the metallic matrixis decreased greatly, and the nano-composite electroformings has a flat surface and compact microstructure. The nano-composite electroformings are composed by Ni single crystal and polycrystal, nano-ZrO2particles. Because of the strengthening effect of nano-particle, nano-composite electroformings exhibit an excellent wear resistance, and changes in their abrasion mechanism take place. The wear resistance of nano-composite electroformings depends on nano-particle content in them. |
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