| WEI Yong-hui,WANG Xiu-li,LIU Yuan-peng,JIANG Zhi-qiang,FENG Xian-zhang.Dry Friction of Metal Materials under DC Magnetic Field[J],46(11):223-229 |
| Dry Friction of Metal Materials under DC Magnetic Field |
| Received:June 10, 2017 Revised:November 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.11.030 |
| KeyWord:magnetic field dry friction magnetic permeability mechanism |
| Author | Institution |
| WEI Yong-hui |
1.School of Mechatronics Engineering, Zhengzhou University of Aeronautics, Zhengzhou , China; 2.Collaborative Innovation Center for Aviation Economy Development of Henan Province, Zhengzhou , China |
| WANG Xiu-li |
School of Mechatronics Engineering, Zhengzhou University of Aeronautics, Zhengzhou , China |
| LIU Yuan-peng |
School of Mechatronics Engineering, Zhengzhou University of Aeronautics, Zhengzhou , China |
| JIANG Zhi-qiang |
School of Mechatronics Engineering, Zhengzhou University of Aeronautics, Zhengzhou , China |
| FENG Xian-zhang |
School of Mechatronics Engineering, Zhengzhou University of Aeronautics, Zhengzhou , China |
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| Abstract: |
| For dry friction in magnetic field, the work mainly aims to study mechanism and rule of effects of magnetic field intensity parameters on dry friction and wear properties of materials. Study process, study methods and corresponding study results regarding dry friction of metal materials in DC magnetic field were reviewed systematically. Dry friction properties and mechanism of different magnetic (diamagnetic, paramagnetic and ferromagnetic) materials in magnetic field were expounded. It was concluded that magnetic permeability of materials had certain corresponding relation with dry friction properties in dry friction. The higher the magnetic permeability was, the more obvious the decreasing trend of wear rate and wear coefficient were. Problems encountered during experimental study were pointed out, for example, friction pair material selection, magnetic field applying device, frictional contact mode and holding jig should be noted. Three preparation schemes were designed to prevent interference caused by difference in chemical composition. It was founded that the aim was hardly achieved in conventional material preparation methods by changing micro-structure phase content with heat treatment process, or changing chemical composition by adding ferromagnetic elements including Fe, Co and Ni. Finally, relying on extensive cold working hardening characteristics of austenitic stainless steel 1Cr18Ni9Ti, several materials with identical composition and of different magnetic permeability were prepared by adopting forging process at room temperature. As a result, magnetic permeability became a key variable. Reciprocal effect and effect law of magnetic field intensity and material magnetic permeability on dry friction properties in magnetic field were studied, and research orientation in the future was expected. |
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