Abstract
The abrasive wear resistance of zirconia toughened alumina (ZTA) ceramic particle reinforced high chromium cast iron (HCCI) composites has been systematically investigated using a moving wedge type of apparatus. The results of three-body abrasive wear show that the wear resistance of the composites with honeycomb is three times higher than that of the high chromium cast iron. The wear resistance of the composites with a honeycomb structure is close to that of the layer structure and is higher than that of the HCCI because the honeycomb wall in the cell honeycomb structure is prominent and because the honeycomb core is depressed. The wear mechanisms of the composites are mainly microcutting and fatigue fractures. The honeycomb structure forms a “macrocosmic shadow protection effect” and a “microcosmic shadow protection effect” to protect each composite and to improve the wear resistance of the composites.
Highlights
Abrasive wear is ubiquitous in industry, agriculture, transportation and everyday life
Taking into account the materials’ application and production technology, the properties of ceramic particle reinforced metal matrix composites are largely dependent on the incorporated reinforcement particles and on the structure of the composites [4,5]
WC or Al2 O3 particle reinforced iron matrix composites can improve the wear resistance, and these composites are better than the iron matrix [10,11]
Summary
Abrasive wear is ubiquitous in industry, agriculture, transportation and everyday life. Wear-resistant materials have several advantages, including light-weight, high hardness, high strength, and high performance-price ratio advantages. Ceramic particle reinforced metal matrix composites (CPRMMCs) offer several advantages, such as the elastic modulus and the strength of the matrix, as well as the hardness and the wear resistance of ceramic particles, which have been considered the most promising wear resistant materials [1,2,3]. SiC-reinforced Al composites with a multi-core microstructural architecture are improved in terms of the fracture toughness and the strength [7]. WC or Al2 O3 particle reinforced iron matrix composites can improve the wear resistance, and these composites are better than the iron matrix [10,11]
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