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

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

Distribution Statement:

APPROVED FOR PUBLIC RELEASE