PHASE RELATIONSHIPS IN SELECTED BINARY AND TERNARY VANADIUM-BASE ALLOYS SYSTEMS

摘要

In order to obtain information for the development of vanadium-base alloys, binary systems (V-La, V-Ce, V-Pr, V-Nd, V-Gd, V-Sn, V-Hf, V=Th, V-W, and V-Re) and ternary systems (V-Ti-Nb, V-Ti=Mo, V-Ti-Ta, V-Ti-W, V-Ti-O, V-Ti-Si, and V-Ti-Be) were investigated forn1. the extent of the vanadium-rich solid solution between 800° and 150'C,n2. the character of the second phase in equilibrium with the solid solution, andn3o the possible melt reaction. Metallographic examination, X-ray powder diffraction analysis, incipient melting point determination, differential thermal analysis, and micro-hardness tests were used as experimental technique.