文章摘要
王静静,王砚军,王振,李超.熔渗型宽温域复合固体润滑剂设计及其摩擦学性能研究[J].润滑与密封,2018,43(1):50-54
熔渗型宽温域复合固体润滑剂设计及其摩擦学性能研究
Preparation and Tribological Properties of Composite Solid Lubricants over a Wide Range of Temperature
  
DOI:10.3969/j.issn.0254-0150.2018.01.011
中文关键词: 复合固体润滑剂  熔渗  润湿性能  摩擦磨损性能
英文关键词: composite solid lubricant  infiltration  wettability  friction and wear properties
基金项目:国家自然科学基金项目(51275208);山东省重点研发计划项目(2016GGX10202).
作者单位E-mail
王静静 济南大学机械工程学院 1640366530@qq.com 
王砚军   
王振   
李超   
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中文摘要:
      设计一种可用于300~800 ℃宽温度范围润滑的熔渗型Pb Sn Ag RE复合固体润滑剂。基于润湿试验研究不同组分与配比对其润湿性能的影响;采用高频感应熔渗工艺,制备出熔渗型高温自润滑复合材料;利用XP 5型高温摩擦磨损试验机考察其摩擦磨损性能,运用扫描电子显微镜(SEM)和X射线衍射仪(XRD)分析磨损表面形貌、成分及结构。结果表明:不同组分组成对基体的润湿性有很大的影响,在 Pb Sn系固体润滑剂中添加 Ag、RE既能提高其对母材的润湿性能,又能改善自润滑材料的摩擦磨损性能;熔渗Pb Sn Ag RE复合固体润滑剂制备的复合材料具有良好的高温自润滑性能,其600 ℃下的平均摩擦因数约为0.28。
英文摘要:
      A infiltration type Pb Sn Ag RE solid lubricant over a wide range of temperature (from 300 ℃ to 800 ℃) was designed.The effects of different compositions and proportions of Pb Sn Ag RE solid lubricant on the wettability to M3/2 based metal ceramic preforms were studied.A self made infiltration furnace was used to infiltrate the metal ceramic preforms with molten soft metal lubricants.The friction and wear behaviors of the composites were investigated using XP 5 type high temperature friction and wear tester.Images and structures of worn surfaces were analyzed by means of scanning electron microscopy(SEM)and X ray diffractometry(XRD).The results show that different components have great influence on the wettability to the matrix.The wetting properties of Pb Sn solid lubricants were improved by adding Ag and RE,and it can also improve the friction and wear properties of self lubricating materials.The composites prepared by melt infiltration Pb Sn Ag RE composite lubricant have a good self lubricating properties at high temperature,the friction coefficient is about 0.28 at 600 ℃.
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