| HUA Xi-jun,LIU Kai,ZHOU Wan,FU Yong-hong,WANG Rong,SUN Jian-guo.Research of Antifriction and Wear Resistance Composite Technology by Laser-texturing and Quenching on 45# Steel surface[J].Surface Technology,,(): |
| Research of Antifriction and Wear Resistance Composite Technology by Laser-texturing and Quenching on 45# Steel surface |
| 投稿时间：2013-03-04 修订日期：2014-04-27 |
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| DOI： |
| KeyWord:45# steel laser quenching microstructure solid lubrication |
| Author | Institution |
| HUA Xi-jun |
Mechanical Engineering College, Jiangsu University, Zhenjiang ,China |
| LIU Kai |
Mechanical Engineering College, Jiangsu University, Zhenjiang ,China |
| ZHOU Wan |
Mechanical Engineering College, Jiangsu University, Zhenjiang ,China |
| FU Yong-hong |
Mechanical Engineering College, Jiangsu University, Zhenjiang ,China |
| WANG Rong |
Mechanical Engineering College, Jiangsu University, Zhenjiang ,China |
| SUN Jian-guo |
Mechanical Engineering College, Jiangsu University, Zhenjiang ,China |
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| Abstract: |
| Objective To improve the hardness and antifriction properties on 45# steel surface. Methods Laser quenching was performed on the 45# steel surface by YLR-200-AC fiber laser. The effects on the hardened depth and width of the quenched surface by laser powers and scanning speeds were studied. The micro-hardness and micro-structure were analyzed on the different parts of the hardened layer. Uniform-distributive micro-dimples were conducted on the smooth surface of 45# steel specimens by diode-pumped Nd: YAG laser machine and MoS2-PI-Gr composite solid lubricants were filled into the texture by hot-pressing method, then tribological performance comparison with the untreated smooth 45# steel surface was carried out. Results The hardness of 45# steel surface could reach up to 835HV and the friction coefficient caould be reduced by almost 50% through laser-texturing and quenching composite technology. Conclusion The hardness of 45# steel surface could be increased and the friction coefficient could be reduced by laser-texturing and quenching composite technology, which would have a good engineering application prospect. |
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