Wear is a problem often occurring in industrial applications. One of the most common types of surface degradation is sliding wear, resulting mainly in grooves and material removal in the loaded area as well as rounding of edges and corners on structured surfaces. This significantly reduces the service life of the product. To prevent this, protective coatings can be applied to reduce wear. The most commonly used protective systems are via PVD and CVD applied hard layers, as well as soldered hard metal plates. The application of these protective layers requires a complex process using vacuum or inert gas. In this study, a metal-rich composite consisting of a soft, tough binder metal (CuSn-alloy) and a wear-resistant hard material (WC) is applied via liquid phase sintering (LPS) and evaluated as a cost-efficient alternative. Due to the toughness of the CuSn-alloy the sliding properties and the energy absorption capacity of the coating are favoured. The WC reduces abrasive wear through its hardness and at the same time, the particles are protected from breakout by the soft matrix. The MMC is based on a mixture of CuSn and WC powders. Additives, like for example higher-boiling alcohol as plasticizer, are added for better processability. To make the process universally usable for a wide range of applications, the resulting paste is applied with geometric precision and processed using induction heating without pressure at ambient atmosphere. Our studies describe the manufacturability as well as the resulting layer formation of the CuSn-WC composite and the subsequent bonding to the tool material.
Poster
Erwerben Sie einen Zugang, um dieses Dokument anzusehen.
© 2026