华希俊,刘凯,周万,符永宏,王蓉,孙建国.45#钢表面激光织构淬火减摩抗磨复合处理技术研究[J].表面技术,,():.
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,,(): |
| 45#钢表面激光织构淬火减摩抗磨复合处理技术研究 |
| 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 |
| DOI： |
| 中文关键词: 45#钢 激光淬火 微织构 固体润滑剂 |
| 英文关键词:45# steel laser quenching microstructure solid lubrication |
| 基金项目:国家自然科学基金(51375211，51175233)；国家重大科技成果转化项目（2060403）；江苏省科技支撑计划项目（BE2010060）；镇江市工业科技支撑项目（GY2012039） |
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| Author | Institution |
| HUA Xi-jun | Mechanical Engineering College, Jiangsu University, Zhenjiang 212013,China |
| LIU Kai | Mechanical Engineering College, Jiangsu University, Zhenjiang 212013,China |
| ZHOU Wan | Mechanical Engineering College, Jiangsu University, Zhenjiang 212013,China |
| FU Yong-hong | Mechanical Engineering College, Jiangsu University, Zhenjiang 212013,China |
| WANG Rong | Mechanical Engineering College, Jiangsu University, Zhenjiang 212013,China |
| SUN Jian-guo | Mechanical Engineering College, Jiangsu University, Zhenjiang 212013,China |
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| 摘要点击次数: |
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| 中文摘要: |
| 目的 提高45#钢零件的表面硬度和润滑减摩性能。方法 在45#钢试样表面进行激光淬火，研究激光功率和扫描速度对淬火表面淬硬层深度和宽度的影响，分析淬硬层不同区域的显微硬度和微观组织。利用二极管泵浦Nd:YAG激光加工机在45#钢光滑试样表面加工出具有一定分布规律的微凹坑织构，采用热压法向其中填入由MoS2、聚酰亚胺和石墨组成的复合固体润滑剂，并与未处理的光滑试样进行摩擦学性能对比。结果 将激光织构与淬火技术有效融合，可以使45#钢表面硬度提高至835HV，摩擦系数减小约50%。结论 激光织构淬火减摩抗磨复合处理技术能够提高45#钢零件的表面硬度，减小摩擦系数，具有很好的工程应用前景。 |
| 英文摘要: |
| 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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