Özet:

In this study, Hardox 500 steels, which draw attention with their wear resistance and mechanical properties, were subjected to box boring process at different temperatures and times. Boronizing process was carried out at 850, 900 and 950 oC temperatures and for 2, 4, and 6 hours for each boring temperature. The morphology of the boron layer formed on the sample surfaces as a result of the boronization process was examined by SEM microscope. Boron phases formed by measuring the Vickers hardness values were analyzed by X-Ray diffraction technique (XRD). It was observed that the boride layer formed according to the XRD analysis consisted of a single phase Fe2B structure. It was observed that the boride layer thickness in Hardox 500 steel increased with the increasing boronization temperature and duration. The abrasion tests were carried out using the ball disc wear method at a sliding speed of 0.3 m / s under a load of 10 N in a dry environment and a sliding distance of 500 meters. As a result of the abrasion test performed after the boronization process, the wear rate of Hardox 500 steel decreased compared to the purchased state, and the wear resistance increased. The adhesion properties of the boride layer were examined by the Daimler-Benz Rockwell-C test. It was determined that with increasing boronization temperature and time, the wear and adhesion resistance decreased.