Single-asperity contributions to multi-asperity wear simulated with molecular dynamics

International Conference on Materials, Processing and Product Engineering 2015

Eder, S.J.^1 ; Cihak-Bayr, U.^1 ; Bianchi, D.^1

AC2T Research GmbH, Viktor-Kaplan-Straße 2, Wiener Neustadt

2700, Austria^1

关键词: Abrasive particles;    Grinding direction;    Grinding process;    Normal pressure;    Particle geometries;    Single asperity;    Time-resolved;    Wear particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/119/1/012009/pdf
DOI  :  10.1088/1757-899X/119/1/012009

来源: IOP

【 摘 要 】

We use a molecular dynamics approach to simulate the wear of a rough ferrite surface due to multiple hard, abrasive particles under variation of normal pressure, grinding direction, and particle geometry. By employing a clustering algorithm that incorporates some knowledge about the grinding process such as the main grinding direction, we can break down the total wear volume into contributions from the individual abrasive particles in a time-resolved fashion. The resulting analysis of the simulated grinding process allows statements on wear particle generation, distribution, and stability depending on the initial topography, the grinding angle, the normal pressure, as well as the abrasive shape and orientation with respect to the surface.