HVOF SPRAYED NANOSTRUCTURED COMPOSITE COATINGS WITH A REDUCED FRICTION COEFFICIENT
Journal Title: Tribologia - Year 2017, Vol 274, Issue 4
Abstract
Nanostructured materials provide new possibilities, which enable creating composite structures with much better properties than composites obtained from conventional materials. Such a solution facilitates combining selected features of different nanomaterials in order to obtain a composite with the required durability, thermal, insulation, tribological, etc. properties. In the case of a composite containing a solid lubricant, it is comprised of a nanostructured matrix, providing mechanical durability, and an evenly distributed nanostructured solid lubricant. A study of the tribological properties of composite HVOF sprayed from nanostructured WC-12Co mixed with nanostructured Fe3O4, having the properties of the solid lubricant is presented. The coatings were sprayed by means of a Hybrid Diamond Jet system. A T-01 ball on disc tribological tester was used to determine the coefficient of friction on the basis of friction force obtained in the course of continuous measurement at a set load. The result of investigations was compared with properties of coatings sprayed with standard WC-12Co/ Fe3O4.
Authors and Affiliations
Wojciech ŻÓRAWSKI, Medard MAKRENEK, Anna GÓRAL, Sławomir ZIMOWSKI
Keywords
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- EP ID EP238760
- DOI 10.5604/01.3001.0010.6056
- Views 75
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