DISPERSION-STRENGTHENED VANADIUM ALLOYS.
Abstract
Vanadium-niobium alloys, dispersion-strengthened by additions of Ti, Zr, or Hf in combination with C, have been prepared by arc-melting. Compositions containing 1 wt-% Hf with small C additions are more difficult to fabricate and have higher recrystallization temperatures than similar alloys containing Zr and C. Short-time creep tests were conducted in 2000 F air on siliconized V-60wt-% N base specimens. At stress levels of 8500 to 8850 psi, creep values of 0.5 to 1.2% were measured in 2 1/2 hours. Some of the specimens retained their room-temperature tensile strength and ductility after stressing at 2000 F. These initial data indicate that V-60wt-%N alloys containing 1wt-% Tu with residual melting stock impurities are more creep resistant at 2000 F than the alloys containing 1wt-% Zr with 0.1 or 0.2wt-% carbon. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 08, 1963
- Accession Number
- AD0423428
Entities
People
- F. C. Holtz
Organizations
- IIT Research Institute