Analysis of Wear Process of Mechanical System “0.45% Carbon Steel – Polytetrafluorethylene” during Sliding and Mechano-Sliding Fatigue Using Fracture Mechanics Criterion
The results of the tests for a friction pair “a cylindrical specimen made of 0.45% carbon steel — a prismatic counterspecimen-liner made of polytetrafluoroethylene F4-B” during sliding friction and mechano-sliding fatigue at different levels of contact load are presented. The experimental data are a...
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| Format: | Article |
| Language: | English |
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National Academy of Sciences of Belarus, State Scientific Institution “The Joint Institute of Mechanical Engineering"
2019-09-01
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| Series: | Механика машин, механизмов и материалов |
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| Online Access: | http://mmmm.by/en/readers-en/archive-room-en?layout=edit&id=1500 |
| Summary: | The results of the tests for a friction pair “a cylindrical specimen made of 0.45% carbon steel — a prismatic counterspecimen-liner made of polytetrafluoroethylene F4-B” during sliding friction and mechano-sliding fatigue at different levels of contact load are presented. The experimental data are analyzed using the Archard’s equation and are presented as kinetic dependencies of wear and a friction fatigue curve. The concept of the frictional stress intensity factor during sliding friction is introduced, and the expression is proposed that relates the wear rate to this factor and is close in shape to the Paris equation in fatigue fracture mechanics. Satisfactory compliance of the results of testing the metal-polymer tribo-fatigue system to the proposed expression is obtained both under conditions of sliding friction and under mechano-sliding fatigue. |
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| ISSN: | 1995-0470 2518-1475 |