Investigation of wear of ceramic coating on tool steel

Lifetime of details directly influences lifetime of machines and equipments. Details in most cases wear out, instead of collapse, Raise of their wear resistance is a perspective problem. The most economic way is drawing hard-wearing coverings on a surface of the details made of carbon steel. In our work coverings from oxide ceramics (Al2O3 and Al2O3+TiO2), put by the way of a gas-flame spraying on a surface of the specimens made from tool steels Y12 and P6M5 were investigated. Before a conversion coating specimens became hardened, temper was made, the surface was exposed to sandblasting, and the special sub layer for raise of an adhesion of a covering with a basis was put. Then it was tested contact and abrasive wear resistance of surfaces on original installations. It is resulted and circuits a technique of research of wear resistance. Agency on wear resistance of an aspect oxide ceramics, type of wear - contact and abrasive is investigated. In the end of work leading-outs and are presented to the recommendation on application oxide ceramics for raise of wear resistance of steel details.