Title :
Investigation on mechanical properties of Nb3Sn multifilamentary wires
Author :
Vorobiova, A. ; Shikov, A. ; Nikulin, A. ; Silaev, A. ; Golikov, I. ; Davudov, I. ; Izmailova, T.
Author_Institution :
Bochvar (A.A.) All-Union Sci. Res. Inst. of Inorg. Mater., Moscow, Russia
fDate :
7/1/1996 12:00:00 AM
Abstract :
The mechanical properties of multifilamentary Nb3Sn wires have an important role in their application in large scale magnetic systems. The influence of heat treatment schedules and design factors on the mechanical properties of rectangular and round section bronze route wires was investigated. Ultimate tensile strength, yield strength and elongation of stabilized and non-stabilized wires 0.4 mm×4 mm in section and 0.8-1.5 mm in dia containing 4000-14000 Nb filaments before and after heat treatment were studied. It was shown that a change of the wire design, volume fraction of copper, heat treatment regimes, influence strongly on strength and plasticity of wires. The level of the mechanical properties of stabilized wires depends on the volume fraction and location of stabilizer in the section of Nb3Sn wire
Keywords :
elongation; heat treatment; multifilamentary superconductors; niobium alloys; plastic deformation; plasticity; tensile strength; tin alloys; yield strength; Cu; Cu volume fraction; Nb3Sn; Nb3Sn multifilamentary wires; application; design factors; heat treatment schedules; large scale magnetic systems; mechanical properties; plasticity; rectangular section bronze route wires; round section bronze route wires; stabilizer location; superconductor; tensile strength; wire design; yield strength; Conductors; Heat treatment; Mechanical factors; Niobium; Niobium-tin; Shape; Superconducting magnets; Superconducting materials; Tin; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
