Accession Number : AD0431776

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

Descriptive Note : Bimonthly rept. no. 2, 1 Dec 63-31 Jan 64,

Corporate Author : IIT RESEARCH INST CHICAGO ILL

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

Report Date : 28 FEB 1964

Pagination or Media Count : 12

Abstract : The influence of the pack-siliconizing coating and the coating process on the mechanical properties of V-60 wt. % Cb-1 wt. % Ti is under investigation. Preliminary results show that no hardening of the substrate of 0.050 in. coated sheet occurs after twenty-five 4-hr static air oxidation cycles at 2000 F. The pack siliconizing process has been modified to eliminate potential sources of interstitial contamination of the alloys during the coating process. Results indicate that the coated materials produced under these conditions in all cases have a ductile-tobrittle transition temperature below room temperature. Work has also been initiated in the development of an oxidation resistant slurry or liquid cementation type coating for vanadiumcolumbium alloys. (Author)

Descriptors :   (*VANADIUM ALLOYS, SILICON), (*NIOBIUM ALLOYS, PROTECTIVE TREATMENTS), (*PROTECTIVE TREATMENTS, VANADIUM ALLOYS), OXIDATION, CORROSION INHIBITION, HEAT TREATMENT, COATINGS

Distribution Statement : APPROVED FOR PUBLIC RELEASE