Friction Characteristics of CNx Coated Dimple Pattern with Hexagonal Array
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In this study, we examined the friction characteristics of a dimple pattern on a carbon nitride coating. The study was conducted with a hexagonal array 40 μm dimple pattern on a steel bearing containing a CNx coating. The area density of the dimple patterns were varied between 5% and 25%, the speed was varied from 0.06-0.26m/s, and the load was varied between 20-100N. In general, we found that as the velocity increased, the friction coefficient increased. Furthermore, the friction coefficient was lowest at a load of 40N. The friction coefficient of the non-coated specimen was 0.025-0.15; on the other hand, the friction coefficient of the coated specimen was 0.002-0.02. Thus, we determined that the coated materials could reduce the friction coefficient by a factor of 7.5.
Abstract
In this study, we examined the friction characteristics of a dimple pattern on a carbon nitride coating. The study was conducted with a hexagonal array 40 μm dimple pattern on a steel bearing containing a CNx coating. The area density of the dimple patterns were varied between 5% and 25%, the speed was varied from 0.06-0.26m/s, and the load was varied between 20-100N. In general, we found that as the velocity increased, the friction coefficient increased. Furthermore, the friction coefficient was lowest at a load of 40N. The friction coefficient of the non-coated specimen was 0.025-0.15; on the other hand, the friction coefficient of the coated specimen was 0.002-0.02. Thus, we determined that the coated materials could reduce the friction coefficient by a factor of 7.5.
참고문헌 (8)
- Lidia Galda, "Dimple Shape and Distribution Effect on Characteristics of Stribeck Curve", Tribology International, 42, pp.1505~1512 (2009)
- Fanming Meng, "Study on Effect of Dimples on Friction of Parallel Surfaces Under Different Sliding Conditions", Applied Surface Science, 256, pp.2863~2875 (2010)
- 최원식, "Hexagonal 배열 40 μm Dimple 패턴의 트라이볼로지적 특성", 한국윤활학회지, 25(1), pp.25~30 (2009), 한국윤활학회
- SangYul Lee, "Application of the Duplex TiN Coatings to Improve the Tribological Properties of Electro Hydrostatic Actuator Pump Parts", Surface & Coating Technology, 193, pp.266~271 (2005)
- Ronen A, "Friction Reducing Surface Texturing in Reciprocating Automotive Components", Tribology Transaction, 44(3), pp.359~366 (2001)
- Xiaobin Lu, "An Experimental Lnvestigation of Dimple Effect on the Stribeck Curve of Journal Bearings", Tribol Lett, 27, pp.169~176 (2007)
- D. H. Kim, "Anisotropic Tribological Properties of the Coating on a Magnetic Recording Disk", Thin Solid Films, 360, pp.17~194 (2000)
- Wang X, "The Lubrication Effect of Micro-pits on Parallel Sliding Faces of SiC in Water", Lubrication Engineering, pp.27~34 (2002)