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)
作者单位
华希俊 江苏大学 机械工程学院,江苏 镇江 212013 
刘凯 江苏大学 机械工程学院,江苏 镇江 212013 
周万 江苏大学 机械工程学院,江苏 镇江 212013 
符永宏 江苏大学 机械工程学院,江苏 镇江 212013 
王蓉 江苏大学 机械工程学院,江苏 镇江 212013 
孙建国 江苏大学 机械工程学院,江苏 镇江 212013 
AuthorInstitution
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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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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