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Dispersion-strengthening mechanisms are under investigation in alloys based on the Nb-- V system for the purpose of improving stress-rupture properties. Ten compositions containing small C additions in combination with Hf or Zr were prepared by nonconsumable-electrode arc melting. Powder metallurgy preparation of alloys containing dispersed refractory particles is also under investigation. Minus 325 mesh powders of a V--Nb--Ti alloy were produced by the hydride process; the sintered compacts were over 90% of theoretical density and possessed a relatively high degree of compressive ductility at room temperature. (auth)

DISPERSION-STRENGTHENED VANADIUM ALLOYS. Bimonthly Report No. 1, December 14, 1962-February 13, 1963