Dispersion-Strengthened Vanadium Alloys
Corporate Author: Armour Research Foundation Corporate Report Number: B6007-2 Date of Publication: 1963-05-08 Pages: 13 Contract: N600 19 59567 AD Number: AD0404100 Original AD Number: AD-404 100Contrails does not possess a copy of this report. Click here to offer Contrails a donation of this report
Abstract: Arc-melting and powder metallurgy techniques are used to incorporate fine, refractory dispersants in vanadium-columbium base alloys in order to improve their long-time, elevated-temperature strength properties. Solution annealing and aging studies of arc-melted alloys containing hafnium or zirconium in combination with carbon indicate that the hafnium carbide phase is more stable. The hydride process was used to obtain powders of V-60w/o Cb-1w/o Ti, to which fine oxide or carbide powders were added. After blending, cold- compacting, sintering at 2800 F, and annealing at 2000 and 2400 F, specimens containing alumina and thoria exhibited a high degree of reactivity with the alloy base. Improved stability was noted in the alloys containing ceria, lanthana, yttria, hafnium carbide, and zirconium carbide.