INVESTIGATION OF ELECTROPHYSICAL AND MECHANICAL-PROPERTIES OF HIGH-STRENGTH CU-NB COMPOSITES FOR PULSE MAGNETIC SYSTEM WINDING WIRES

Melting by consumable electrode vacuum arc melting and casting process es for ingots of pseudo-alloy Cu-Nb with Nb content of up to 20% have been investigated. The effect of the degree of deformation of composit es with different Nb content in the initial alloy on strength properti es has been investigated. The process for manufaCturing long-length co mposite conductors o f rectangular cross-section 3mmx2mm of various de signs has been developed. The application of the method of repeat asse mbling has been shown to allow the variation over a sufficiently wide range of the electrical and mechanical parameters of conductors with l arge cross section area. Thus, for wires with 6mm in cross section, re lative elongation values of 3-8%, ultimate tensile strength values of 0.7-1.1 GPa (at room temperature) and electroconductivity of 50-80% of IACS are achivable.The results of wire testing in high-field pulsed m agnet windings are given.