Estudio Tribológico de Aleaciones Antidesgaste

Abstract

Wear as a natural effect of friction between two bodies or more, in relative motion, can be found in the different processes that the machinery of the mining industry performs. In the present investigation the erosive type wear resistance according to ASTM G-76 was evaluated in the alloys MAXDUR 450, high chromium iron and austenitic manganese steel. Subsequently the microstructure, hardness and microhardness were related to erosive wear resistance. In addition, the wear surface was characterized by scanning electron microscopy. When comparing the values of hardness measurements and the results of the tests of erosive wear, it was demonstrated that the hardness and microhardness are directly related to the resistance to erosive wear. The material that presented the best resistance to erosive wear, as high hardness and good ductility was austenitic manganese steel.