Wear Resistance of Eutectic Welding Coatings of Iron-Based Fe–Mn–C–B–Si–Ni–Cr at Increased Temperature

— This paper investigates the wear of iron-based Fe–Mn–C–B–Si–Ni–Cr hard-faced welding coatings. A tribological test of wear was performed at ambient and elevated (250°C) temperatures. The Anton Parr THT 1000 ball-on-disk tribometer was used for friction and wear tests. The surface after friction was evaluated using a scanning electron microscope (SEM). For the tested samples at ambient temperature the wear rate amounted to 6.23 × 10 –6 mm 3 /(N m), whereas that of the samples tested at 250°C increased to 7.89 × 10 –6 mm 3 /(N m). Eutectic coatings are used to increase the service life of the working bodies of machine parts and mechanisms subject to abrasive wear.