Oxidation of OT4 and OT4-1 Alloys during Prolonged Heating in Air at Temperatures of 200-400C,
Abstract
It was shown that during the process of prolonged heating in air at 200-400C the surface of OT4-1 and OT4 alloys is saturated with oxygen with the formation of a thin TiO2 oxide film on the surface and on the alfin layer (solid solution of oxygen in an alpha-titanium) under it to thickness of up to 22 micrometers. During prolonged holding (more than 2,000 h) a large portion of the oxygen is released into the diffuser in the solid solution. Diffusion of oxygen in the solid solution leads to an increased alloy microhardness.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 10, 1973
- Accession Number
- AD0768468
Entities
People
- E. N. Novikova
- L. I. Luzhnikov
- V. F. Kononova
Organizations
- National Air and Space Intelligence Center