Frequency effects in fretting wear |
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| Affiliation: | 1. Graduate School, Tokyo University of Marine Science and Technology 2-1-6, Etchujima, Koto-ku, Tokyo 135-8533, Japan;2. Tokyo University of Marine Science and Technology, Japan;3. Tokyo Metropolitan College of Industrial Technology, Japan;4. Basic Technology Research Center, Corporate Research and Development Center, NSK Ltd., Japan;1. Ecole Centrale de Lyon, LTDS Laboratory, 36 av Guy de Collongue, 69130, Ecully, France;2. MINES ParisTech, Centre des Matériaux, 63-65 rue Henri-Auguste Desbrueres, F-91003, Évry cedex, France;1. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, NO. 800 Dongchuan Road, Shanghai 200240, China;2. Shanghai Nuclear Engineering Research & Design Institute, No. 29 Hongcao Road, Shanghai 200233, China;1. Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China;2. Science and Technology on Reactor System Design Technology Laboratory，Nuclear Power Institute of China, Chengdu 610213, China;3. AECC Areo science and technology Co. LTD., Metrology and Phys & Chem Testing Center, Chengdu 610000, China;1. Université de Versailles Saint-Quentin, 45 avenue des Etats-Unis, 78000 Versailles, France;2. MINES ParisTech, Centre des Matériaux, CNRS UMR 7633, BP 87 91003 Evry Cedex, France;3. Safran Aircraft Engines, Rond-point René Ravaud, 77550 Moissy-Cramaye, France;1. National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. College of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;3. State Key Laboratory of Superabrasives, Zhengzhou Research Institute for Abrasive & Grinding Co. Ltd, Zhengzhou 450001, China;4. AECC Xi’An Aero-Engine LTD, Xi’an 710021, China |
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| Abstract: | The effect of frequency of vibration on fretting wear has been investigated in the 10 – 1000 Hz range with additional experiments at 20 000 Hz. Fretting tests were performed with two materials, a low carbon steel (AISI 1018) and an austenitic stainless steel (AISI 304). The experiments showed that two cases of fretting contact can be distinguished and related to the displacement amplitude. If the amplitude is low, the contact situation is characterized by partial stick at the interface. At these conditions the wear rate (measured as the volume of material removed per cycle) is little affected by frequency. However, in low amplitude fretting material damage by surface degradation and fatigue crack initiation is usually of more concern than the actual wear itself. Both of these parameters are found to be greatly accelerated by an increase in frequency. In high amplitude fretting, in contrast, gross slip occurs at the interface and wear becomes the dominant damage mode. At these conditions variations in frequency appear to have little effect on fretting wear and related mechanisms. Therefore, in the case of fretting at high displacement amplitudes, it may be possible to apply high frequency fretting to obtain accelerated testing conditions. |
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