| ZHANG Wei-ping,YE Guo-pin,FENG Xin.Microstructure and Properties of 45 Steel Strengthened with Silicon Electrode by EDM[J],36(4):17-19 |
| Microstructure and Properties of 45 Steel Strengthened with Silicon Electrode by EDM |
| Received:May 10, 2007 Revised:August 10, 2007 |
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| DOI： |
| KeyWord:Electro spark strengthening Strengthening coating Wear resistance Corrosion resistance |
| Author | Institution |
| ZHANG Wei-ping |
School of Materials Science and Engineering, Dalian University of Science and Technology, Dalian , China |
| YE Guo-pin |
School of Materials Science and Engineering, Dalian University of Science and Technology, Dalian , China |
| FENG Xin |
School of Materials Science and Engineering, Dalian University of Science and Technology, Dalian , China |
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| Abstract: |
| To improve the surface property of workpiece, experiments of surface strengthening process were made with silicon crystal as electrode under different process parameters with DM7132 precision forming machine, an amorphous alloy strengthening coating was formed on the surface of 45 steel. The morphology, properties and microstructure of the strengthening coating were studied by XRD and SEM. Wear resistance and corrosion resistance of the coating were investigated by the test of the wearing and corrosion. The results show that with same process parameters, better surface quality of workpiece can be obtained by selecting the smaller peak current. A lOpjm deep of amorphous alloy strengthening coating is obtained on the substrate. The wear resistance and corrosion resistance of strengthening coating are improved remarkably. |
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