TRIBOLOGICAL STUDY OF COPPER ALLOY-BASED COMPOSITES REINFORCED WITH WC-W POWDERS PREPARED BY THE SPONTANEOUS INFILTRATION PROCESS OF THE LOOSE POWDER
- 1 Laboratory of Science and Materials Engineering, University of Sciences and Technology Houari Boumediene, Algeria
- 2 Department of Metallurgical and Materials Engineering, Kocaeli University, Turkey
Copper alloy-based metal matrix composite (MMCs) reinforced with different combination of WC-W powders were prepared using the spontaneous infiltration process of the loose powders. The density, microstructure, and hardness of the produced composites were characterized. Friction coefficient and wear rate of the samples under different conditions were carried out in order to determine the tribological properties of the copper based composites as a function of different combination of reinforcement mixtures (WC/WC-W). Wear surfaces of the composites were analysed by scanning electron microscopy (SEM). Results show that WC-W powders improve wear resistance of composites significantly. Wear mechanisms were characterized by delamination, micro cracking and abrasive wear.