Behavior of cermets (Fe powder + Al2O3) obtained 'in situ' in cast iron

The introduction of hard ceramic particles in a ferrous matrix modifies its behavior when undergoing stresses associated with wear resistance. So that this occurs, the particles must be properly selected, with reference to their hardness, size, shape and dispersion. These compound materials are called MMC (metal matrix composites) or cermets. This work looks at the methodology for producing cast iron pieces using a traditional sand mold casting process, using MMC tablets, and placing them in some areas of the piece that will undergo wear from abrasion. The following steps are described in the production of MMC tablets and of the casting material in the foundry's pilot plant. The material was studied and the metallurgical quality was evaluated together with its resistance to the abrasive wear