Wear Resistance of Fe33Ni8Cr8W8Mo8Co8C16B11 Metallic Glass-Based Electrospark Coatings

摘要

This work is devoted to the wear nature of Fe-Ni-Cr-W-Mo-Co-C-B metal glass coatings on steel 1035 substrate via electrospark deposition in various granules mediumcompositions. The microhardness, roughness, and wear resistance of the coatings under dry abrasive and dry sliding wear conditions in the load range of 2.2 to 50 N were studied. During dry abrasive friction, the minimum specific wear rate of the coatings was 1.4 to two times lower than that of steel 1035 in all load ranges. Tests of the Fe33Ni8Cr8W8Mo8Co8C16B11 coating resistance to dry friction against P6M5 steel showed that its wear at 30 km was 1.5 to two times lower than steel 35, but, with a decrease in the normal load, the greatest effect of steel hardening was observed. The results show that the method used in the electrospark deposition of the Fe33Ni8Cr8W8Mo8Co8C16B11 granules mixture can protect the steel substrate from abrasive and sliding wear at low loads and speeds.