Fe-Mo-Ni-Cu-石墨高温自润滑复合材料的摩擦学性能研究

郭俊德; 何世权; 马文林; 孟军虎; 王静波; 陆龙

Fe-Mo-Ni-Cu-石墨高温自润滑复合材料的摩擦学性能研究

郭俊德^1,2,
何世权³,
马文林⁴,
孟军虎^4, ,,
王静波⁴,
陆龙⁵

1.
1. 兰州理工大学石油化工学院, 甘肃兰州 730050
2.
2. 中国科学院兰州化学物理研究所固体润滑国家重点实验室, 甘肃兰州 730000
3.
兰州理工大学石油化工学院, 甘肃兰州 730050
4.
中国科学院兰州化学物理研究所固体润滑国家重点实验室, 甘肃兰州 730000
5.
兰州工业研究院, 甘肃兰州 730050

基金项目:

中国科学院"百人计划"项目(孟军虎)和国家自然科学基金(51105351)资助.

详细信息

中图分类号: TH117.3
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出版历程
- 收稿日期: 2013-12-02
- 修回日期: 2014-05-20
- 发布日期: 2014-11-24

Tribological Characteristics of Fe-Mo-Ni-Cu-Graphite High Temperature Self-Lubricating Composites

1.
1. Institute of Petrochemical Technology, Lanzhou University of technology, Lanzhou 730050, China
2.
2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
3.
Institute of Petrochemical Technology, Lanzhou University of technology, Lanzhou 730050, China
4.
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
5.
Lanzhou Industrial Institute, Lanzhou 730050, China

摘要

摘要: 采用粉末冶金工艺,在Fe-Mo-石墨自润滑复合材料的基础上,制备了添加Ni、Cu两种元素的Fe-Mo-Ni-Cu-石墨高温自润滑复合材料,并在栓-盘式高温摩擦试验机上考察了其在室温、320和450 ℃下的摩擦学性能;采用金相显微镜、XRD和SEM等表征方法,分析了材料金相组织、物相成分和摩擦表面形貌.结果表明:Fe-Mo-石墨自润滑复合材料中添加Ni和Cu元素,可以强化基体,增强材料的力学性能,改善材料的摩擦学性能.在高温摩擦过程中,Fe-Mo-Ni-Cu-石墨高温自润滑复合材料摩擦表面生成的由石墨+CuFe₅O₈ +Fe₃O₄+Fe_2.6Ni_0.4O₄组成的复合润滑膜是导致其具有良好高温润滑性的主要原因.
- Fe基自润滑复合材料 /
- 高温 /
- 摩擦磨损 /
- 氧化物复合润滑膜
Abstract: Fe-Mo-Ni-Cu-graphite high temperature self-lubricating composites which were derived from Fe-Mo-graphite self-lubricating composites were fabricated by powder metallurgy technology. Tribological properties were investigated on a high temperature tribometer with a pin-on-disc configuration at room temperature, 320 ℃ and 450 ℃. Metallography microscopy, scanning electron microscopy and X-ray diffraction were utilized to characterize the microstructure, morphologies and phase composition of the composite. Experimental results show that the addition of Ni and Cu strengthened the matrix, enhanced mechanical properties, and improved the tribological properties of materials. The black composite lubricating film on the worn surface of Fe-Mo-Ni-Cu-graphite high temperature self-lubricating composites was responsible for the good tribological property at elevated temperature.
- Fe-based self-lubricating composites /
- elevated temperature /
- friction and wear /
- metal oxides film

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