Selected Properties of Vanadium Alloys for Reactor Application

Abstract

Selected vanadium-base alloys have been investigated as to tensile and creep strength, corrosion resistance, and thermal conductivity at elevated temperatures for the purpose of making a preliminary evaluation of suitability for use as fuel-element jacketing materials for sodium-cooled reactors. Results indicate the preliminary feasibility of these alloys from all viewpoints under examination and suggest the desirability of studying fabrication proHem.s of alloys and improved reduction methods for vanadium m.etal.

CONSOLIDATION AND FABRICATION TECHNIQUES FOR VANADIUM-20 w/o TITANIUM (TV- 20)

“…This was clearly noted from X-ray radiographs of the ingot; ultrasonic testing was not required. 2. Melliiig.of Preconsolidated Charge Material : 9…”

“…has been devoted to studies of the properties of vanadium and certain of its alloys, ( 1) evaluation of such materials as substitutes for stainless steel in 4 fast reactors was first reported by Smith and Van Thyne in 1957. (2) The fast-reactor service demands imposed upon the cladding (and other structural components) are rigorous, and not easily satisfied by just any metal or alloy that happens to be popular at the moment.…”

VANADIUM PURIFICATION. Quarterly Progress Report No. 3, February 1--April 30, 1967.

“…concentrations can be• maintained. at levels belowINTRODUCTIONThe potential of vanadium and its alloys for use as fast reactor cladding and structural materials has been the subject of several reviews (1)(2)(3). and sodium, on the other hand., lose oxygen to niobium which can become embrittled.…”

VANADIUM PURIFICATION. Quarterly Progress Report No. 1, July 1--September 30, 1966.

“…They based (1) One basic problem in the use of vanadium alloys, however, is a high interstitial level, which can affect corrosion, compatibility, mechanical properties and fabrication.…”

“…Task I, Melting Studies, will comprise three phases, (1) Screening Evaluations, (2) Secondary Scale-up and (3) Scale-up to commercial practice. In Phase 1, which is completed and will be described in detail later in this report, the effect of gettering agents such as aluminum, silicon, and yttrium was evaluated by melting small button ingots.…”