Analytical model for sliding wear of ceramic-metal composites

作者：Ivanova Jordanka; Valeva Varbinka; Gross Ditmar

来源：Comptes Rendus de l Academie Bulgare des Sciences, 2008, 61(5): 653-660.

• wear simulation
• Cermet composite
• interpenetrating microstructure

The analytical model for a sliding wear of a pin-on-disk configuration is proposed. The simulation of the wear begins with dividing into small increments the total sliding distance. For each increment the pressure distribution inside the contact area is determined as a static one. Next, using the Archard's wear model the wear depth and the contact radius is evaluated and the geometry of the worn body is updated. The method is validated at a given geometry of a pin-on-disk configuration for different materials as Cermet composites and a steel. For steel 100Cr6 the obtained theoretical results are compared with experimental data and the average deviation from the experiment is about 5.4%.
The model is applied for Cermet composites with interpenetrating microstructure of the phases. The influence of the microstructure on the wear is captured through explicit formulas for the effective elastic parameters depending on the volume fracture. The behaviour of the contact radius, pressure and wear depth shows a strong influence of the microstructure on wear.

• 出版日期2008