Fretting wear of sintered alumina |
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| Affiliation: | 1. Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde 46, B-9052 Zwijnaarde, Belgium;2. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, China;3. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi''an Jiaotong University, China;4. School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China |
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| Abstract: | Cylinders of alumina, carbon steel, glass and tungsten carbide have been fretted against rectangular specimens of sintered alumina. The damage caused has been assessed by four-point loading bend tests. Coefficients of friction of the contacting surfaces have been measured. These vary from 0.32 to 0.85 but do not correlate with the strength results. Alumina, glass and tungsten carbide produce no effect in fretting. This is due to the absence of adhesion between the surfaces. Fretting against steel increases the bend strength owing to blocking of the surface pores by iron. |
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