INCREASING THE WEAR RESISTANCE OF STEEL PARTS BY SURFACE HARDENING,
Abstract
The effect of plastic deformation on the wear resistance of 10, 20, 45, and U12 steels was studied on cylindrical experimental specimens in a MI-1M machine. The degree of wear was obtained by removing crescent-shaped fragments from the specimen and determining their weight loss on an analytical balance. The microhardness of the specimens was determined with PMT-3 apparatus and the surface roughness with a Kalibr VEI profile meter. The experimental results are shown. The wear resistance of these steels was increased considerably by surface plastic deformation; the deformation pressure constitutes the most important single factor determining the wear resistance of a treated surface. For pressures below optimal, the wear resistance of a surface falls below the maximum, while application of pressures in excess of the optimal results in an over-hardened surface.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 17, 1969
- Accession Number
- AD0693496
Entities
People
- P. G. Alekseev
Organizations
- National Air and Space Intelligence Center