Accession Number : AD0427764


Title :   EVALUATION OF COATED REFRACTORY METAL FOILS.


Descriptive Note : Rept. for 1 July-30 June 63,


Corporate Author : SOLAR SAN DIEGO CALIF


Personal Author(s) : Moore,V S ; Stetson,A R


Report Date : Sep 1963


Pagination or Media Count : 343


Abstract : An extensive evaluation program was carried out to determine the capabilities of various commer cial coating vendors to coat effectively niobium and molybdenum alloy foils (0.006 in.). Two niobium based alloys (D36-Nb-10Ti-5Zr; B66-Nb-5Mo-5V-1Zr) and one molybdenum based alloy (TZM-Mo-0.5Ti-0.08Zr--0.02C) were included. Nine coating vendors participated in the program. Tests performed in the program were receiving inspection (metallography, weight change, gross effects, and microhardness), mechanical properties at room temperature, bend ductility, ductile-brittle transition temperature, cyclic oxidation resistance in a furnace with and without prestraining and in a plasmatorch flame at 5 and 760 Torr, diffusion rates, creep, and fatigue life. The results of these tests show that foils can be coated to provide oxidation resistance for periods of time up to 75 hours at 2500 F without gross loss in mechanical properties. (Author)


Descriptors :   *REFRACTORY METAL ALLOYS , *FOILS(MATERIALS) , FOILS(MATERIALS) , COATINGS , MOLYBDENUM ALLOYS , NIOBIUM ALLOYS , TITANIUM ALLOYS , ZIRCONIUM ALLOYS , VANADIUM ALLOYS , CARBON ALLOYS , MECHANICAL PROPERTIES , OXIDATION , FATIGUE(MECHANICS) , DUCTILITY , BRAZING , BONDING , DIFFUSION , RESISTANCE WELDING , SOLDERING ALLOYS , SILICIDES , SPOT WELDING , MICROSTRUCTURE


Distribution Statement : APPROVED FOR PUBLIC RELEASE