| Fractal Characteristics of Dry Sliding Surfaces Based on 3-D Measurements |
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| 作者姓名： | 张永振 孙乐民 刘维民 朱均 上官宝 |
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| 作者单位： | [1]SchoolofMaterialsScienceandEngineering,HenanUniversityofScienceandTechnology,Luoyang471003,China [2]StateKeyLaboratoryofSolidLubrication,LanzhouInstituteofChemicalPhysics,ChineseAcademyofSciences,Lanzhou730000,China [3]BearingandLubricationTheoryInstitute,Xi＇anJiaotongUniversity,Xi＇an710048,China |
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| 基金项目： | Supported by the Foundation of Creative Scientists of Henan Province (2001) |
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| 摘 要： | 3-D surface morphology measurements of compact graphite irons were used to analyze the fractal characteristics of the surfaces to relate the dry sliding surface morphology to the fractal dimension. The measurements show that the fractal dimensions (Df) of the sliding surfaces vary from1 to 2 and are closely related to the surface morphologies. Increasing depths of grooves or pits increases the Df values, At the same time, increasing densities of the grooves also causes the Df values to increase. The data can be used to discuss relationship between Df and the friction coefficient as well as the wear rate.
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| 关 键 词： | 干燥滑动 分形分析 3D表面 表面形态测量 磨损学 |
Fractal Characteristics of Dry Sliding Surfaces Based on 3-D Measurements |
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| Abstract: | D surface morphology measurements of compact graphite irons were used to analyze the frac-tal characteristics of the surfaces to relate the dry sliding surface morphology to the fractal dimension. The measurements show that the fractal dimensions (Df ) of the sliding surfaces vary from1 to 2 and are closely related to the surface morphologies. Increasing depths of grooves or pits increases the Df values. At the same time, increasing densities of the grooves also causes the Df values to increase. The data can be used to discuss relationship between Df and the friction coefficient as well as the wear rate. |
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| Keywords: | dry sliding fractal analysis 3-D surface |
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