Microstructure and abrasive wear behaviour of shielded metal arc welding hardfacings used in the sugarcane industry

It was found that the hardness of the hypereutectic coating was significantly higher than the hypoeutectic coating. In both cases, optimum hardness was achieved within the first deposited layer. The abrasion tests showed that there was no significance difference in the wear resistance of the hardfacings at the higher loads and there was contrasting wear behaviour in the dry and slurry conditions. The abrasive wear mechanisms were found to be predominantly microploughing and microcracking in the hypoeutectic and hypereutectic coatings, respectively.