International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The paper contains results for wear in conditions of impact between a standard welded and tested specimen realized in the presence of a layer of abrasive particles trailing in the contact zone. It gives an idea about the specifics of this type of wear depending on the impact force and the particle size of the abrasive at various hardness achieved by hard-facing with alloys with different carbon equivalent and a degree of hardening of the layer after the test. Based on an experimental research it was proved that the impact-abrasive wear has its specific features expressed via respective graphical relations. The research was funded by Fund “Scientific Research” at the Ministry of Education and Science of the Republic of Bulgaria.