Accession Number:
AD0768468
Title:
Oxidation of OT4 and OT4-1 Alloys during Prolonged Heating in Air at Temperatures of 200-400C,
Descriptive Note:
Corporate Author:
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
Personal Author(s):
Report Date:
1973-10-10
Pagination or Media Count:
13.0
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.
Subject Categories:
- Metallurgy and Metallography