This study proposes an alternative for the recovery of the crawler tractor bulldozer worn by the abrasive effect of the soil. To this end, deals with a comparative analysis between the wear resistance of an original track like two caterpillars, recovered by different processes. The first recovery process uses the application of a hairpiece in the region of wear and the second is the recovery of the region affected by welding deposition of a hard coating. The specimens were subjected to wear tests type rubber wheel (ASTM G 65-04), the microstructural analysis was performed through the use of techniques for analysis of optical microscopy (OM) and scanning electron microscopy (SEM). The microcut was the wear micromechanism predominant in welding deposition. While for other materials (with lower hardness and less wear resistance) shows the presence of plastic deformation. Was observed that the recovery process tracked using the electrode coating E-83.58 showed to be an alternative for this type of recovery.
Hard Coating; Abrasive wear; Welding; Coated Electrode; Crawler
