High-strength and high-conductivity copper alloy and applications of alloy as material of contact line of high-speed railway allowing speed higher than 400 kilometers per hour
First Claim
1. A copper alloy, comprising 3 wt %-20 wt % niobium, 0.01 wt %-0.1 wt chromium, 0.01 wt %-0.5 wt % zirconium, 0.01 wt %-0.2 wt % titanium and remaining copper;
- the copper alloy exists in the form of a bar or a wire, wherein niobium is distributed in the copper matrix in the form of nanofibers and solid solution atoms, and most of niobium nanofibers are arranged approximately in parallel in the copper matrix, these fibers are approximately parallel to copper alloy rods or wires in the axial direction;
chromium is distributed around the niobium fibers and the copper matrix in the form of nano-particles and solid solution atoms, zirconium is distributed around the niobium fibers and in the copper matrix in the form of copper-zirconium compound nanoparticles and solid solution atoms;
titanium is distributed in the copper matrix in the form of copper-titanium GP zone and solid solution atoms;
the total amount of niobium, chromium and zirconium solid solution atoms contained in the copper alloy is less than 0.2%;
part of chromium and copper zirconium compound nanoparticle are pinned on the phase interface of niobium nanofibers and copper matrix.
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Abstract
The present invention discloses a super-strong high-conductivity copper alloy and applications thereof as the contact wire materials of high speed railways allowing a speed of over 400 km per hour. The copper alloy comprises niobium, chromium, zirconium, titanium and remaining copper; the copper alloy exists in the form of long bar or wire, wherein niobium is distributed in the copper matrix in the form of nanofibers and solid solution atoms, chromium is distributed around the niobium fibers and the copper matrix in the form of nano-particles and solid solution atoms, zirconium is distributed around the niobium fibers and in the copper matrix in the form of copper-zirconium compound nano-particles and solid solution atoms; titanium is distributed in the copper matrix in the form of copper-titanium GP zone and solid solution atoms; the total amount of niobium, chromium and zirconium solid solution atoms contained in the copper alloy is less than 0.2%.
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16 Claims
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1. A copper alloy, comprising 3 wt %-20 wt % niobium, 0.01 wt %-0.1 wt chromium, 0.01 wt %-0.5 wt % zirconium, 0.01 wt %-0.2 wt % titanium and remaining copper;
- the copper alloy exists in the form of a bar or a wire, wherein niobium is distributed in the copper matrix in the form of nanofibers and solid solution atoms, and most of niobium nanofibers are arranged approximately in parallel in the copper matrix, these fibers are approximately parallel to copper alloy rods or wires in the axial direction;
chromium is distributed around the niobium fibers and the copper matrix in the form of nano-particles and solid solution atoms, zirconium is distributed around the niobium fibers and in the copper matrix in the form of copper-zirconium compound nanoparticles and solid solution atoms;
titanium is distributed in the copper matrix in the form of copper-titanium GP zone and solid solution atoms;
the total amount of niobium, chromium and zirconium solid solution atoms contained in the copper alloy is less than 0.2%;
part of chromium and copper zirconium compound nanoparticle are pinned on the phase interface of niobium nanofibers and copper matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- the copper alloy exists in the form of a bar or a wire, wherein niobium is distributed in the copper matrix in the form of nanofibers and solid solution atoms, and most of niobium nanofibers are arranged approximately in parallel in the copper matrix, these fibers are approximately parallel to copper alloy rods or wires in the axial direction;
Specification