VANADIUM ALLOY STUDIES.
Abstract
This program is concerned with the development of vanadium alloys having improved short-time creep properties at temperatures up to 2400F. The alloy V-40Cb-30Ta-1Ti and this base complexed with various combinations of boron, carbon, hafnium, and silicon were readily cold rolled after thermal homogenization of the arc-melted ingots; in some cases a 2400F press forging operation was required for initial ingot breakdown. Most of the compositions exhibited twinning when deformed at room temperature, and unusually high room-temperature strength and ductility were obtained--the alloy containing 0.23 wt% Si and 0.075 wt% C had a density-corrected ultimate strength of 650,000 psi/(lb/in3), with 24% elongation. Addition of 1.5 wt% Hf and 0.075 wt% C produced a substantial increase in the 2200F creep resistance of the V-40Cb-30Ta-1Ti base. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 11, 1964
- Accession Number
- AD0609727
Entities
People
- F. C. Holtz
Organizations
- IIT Research Institute