Friction and wear behavior of pure carbon strip sliding against copper contact wire under AC passage at high speeds
| Autor: | W.X. Zhou, Wulin Zhang, Minhao Zhu, T. Ding, Wang Xiaocui, Chen Guangxiong |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Normal force Mechanical Engineering Abrasive chemistry.chemical_element Surfaces and Interfaces Spall Copper Surfaces Coatings and Films law.invention Arc (geometry) chemistry Mechanics of Materials law Forensic engineering Composite material Electric current Alternating current Slipping |
| Zdroj: | Tribology International. 44:437-444 |
| ISSN: | 0301-679X |
| Popis: | A series of tests on the friction and wear behaviour of pure carbon strip/copper contact wire with alternating current were conducted on a ring-on-block sliding tester at a high speed. The electric current, normal force and sliding velocity have distinct effects on the test results. The worn scar has the smallest size without electric current. The worn scar becomes larger with increasing electric current. Arc ablation pits, dark stream-lines of arc ablation, slipping marks, spalling blocks and the copper-like layer are found on the worn surfaces. Arc erosion, abrasive wear and adhesive wear are main wear mechanisms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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