Accession Number : AD0426040

Title :   HIGH-TEMPERATURE OXIDATION PROTECTIVE COATINGS FOR VANADIUM-BASE ALLOYS.

Descriptive Note : Bimonthly rept. no. 1, 1 Oct-30 Nov 63,

Corporate Author : IIT RESEARCH INST CHICAGO ILL

Personal Author(s) : Kane,L. I. ; Rausch,J. J.

Report Date : 02 JAN 1964

Pagination or Media Count : 11

Abstract : Primary experimental effort has been on determining the influence of the coating process on the ductile-to-brittle transition behavior of coated V-60Nb-1Ti sheet. Eleven tensile samples of V-60Nb-1Ti sheet were coated in two separate pack runs under similar conditions. Several of these were tested at 32 F, 140 F and room temperature, in the as-coated condition. In addition, specimens were vacuum annealed and oxidized after coating and subsequently tested at room temperature. For specimens tested in the as-coated condition, brittle failure occurs at both 32 F and room temperature. At 140 F the material is ductile, having tensile properties similar to the uncoated, annealed alloy at room temperature. It appears, therefore, that for tensile testing a brittle-to-ductile transition occurs at just above room temperature. (Author)

Descriptors :   (*VANADIUM ALLOYS, PROTECTIVE TREATMENTS), (*COATINGS, SILICIDES), NIOBIUM ALLOYS, TITANIUM ALLOYS, OXIDATION, DUCTILITY, BRITTLENESS, TENSILE PROPERTIES, TRANSITION TEMPERATURE, HEAT TREATMENT, LOW PRESSURE

Distribution Statement : APPROVED FOR PUBLIC RELEASE