Pore Radius Distribution Model of Cemented Carbide for Mechanical Seals

Ze Ding ； Ying Liu ； Qing-Feng Wen ； Shuang-Fu Suo ； Yu-Ming Wang

《Proceedings of the 14th IFToMM World Congress》 14th-3 (2015/10) Pp. 616-620

https://doi.org/10.6567/IFToMM.14TH.WC.OS18.013

並列摘要

With respect to the Sierpinski fractal carpet, the relationship between the porosity and maximal pore size of cemented carbide is studied and a method provided to estimate the maximum pore diameter according to the porosity. Referring to fractal contact model of mechanical face seal, a pore radius distribution model is established as well as a calculation method with which the quantity of different radius pores on cemented carbide surface can be obtained by known parameters of porosity φ_a, surface roughness Ra and surface fractal dimension D. The accuracy of the calculation method is verified by a comparison of theoretic result with experiment result measuring with the white light interferometer. The cemented carbide surface pore radius distribution model is a foundation to further research on thethermal-elasto-hydrodynamic model of the contact mechanical face seals under mixed lubrication considering real material characteristics.

並列關鍵字

Porous material ； Cemented carbide ； Fractal model ； Pore distribution