High strength wire
AssigneeFort Wayne Metals Research Products Corporation
InventorsJeremy E. Schaffer, Robert A. Mitchell, Andrew Kritsch
Life of this patent
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Abstract
Ultra-High-Strength (UHS) wires are suited to high strength wire, strands, cables and rope applications including robotics force transmission and other high-performance mono- and multifilament wire applications. The wires exhibit high strength, low stretch and fatigue durability. Exemplary UHS materials include binary molybdenum-rhenium or tungsten-rhenium alloys with between 20 and 50 wt. % rhenium. These alloys are processed from a moderate strength (<2 GPa) warm-drawn rod to drawn monofilament wire with extreme nanocrystalline grain refinement, high apparent fatigue durability, and ultimate strength levels exceeding 5 GPa in all cases, and up to 6.8 GPa at monofilament diameters ranging from 7 to 100 μm.
Claims23
A high strength cable construct comprising a plurality of drawn alloy filaments formed from a molybdenum-rhenium alloy, wherein the cable construct exhibits strength up to 4800 N/mm2 of break load per solid cross-sectional filament area;
- wherein the plurality of filaments are formed from an alloy consisting of about 41 wt. % rhenium and balance molybdenum and inevitable impurities;
- and
- wherein each of the plurality of filaments has a diameter of between 7-12 μm and exhibits tensile strength up to 6.9 GPa.
A high strength cable construct comprising a plurality of drawn alloy filaments formed from a molybdenum-rhenium alloy, wherein the cable construct exhibits strength up to 4800 N/mm2 of break load per solid cross-sectional filament area;
- wherein the plurality of filaments are formed from an alloy consisting of about 41 wt. % rhenium and balance molybdenum and inevitable impurities;
- and
- wherein each of the plurality of filaments has a diameter of between 20-30 μm and exhibits a work-energy to fracture up to 120 mJ/mm3.
A high strength cable construct comprising a plurality of drawn alloy filaments formed from one of a tungsten-rhenium or a molybdenum-rhenium alloy, wherein the cable construct exhibits strength up to 4800 N/mm2 of break load per solid cross-sectional filament area;
- wherein the plurality of filaments each have a diameter between 7-100 μm;
- and
- wherein the plurality of filaments comprises between 49 and 3721 filaments.
A high strength cable construct comprising a plurality of drawn alloy filaments formed from one of a tungsten-rhenium or a molybdenum-rhenium alloy, wherein the cable construct exhibits strength up to 4800 N/mm2 of break load per solid cross-sectional filament area;
- and
- wherein the cable construct comprises 19 strands each having 19 of the plurality of filaments.
A high strength cable construct comprising a plurality of drawn alloy filaments formed from one of a tungsten-rhenium or a molybdenum-rhenium alloy,
- wherein the cable construct exhibits strength up to 4800 N/mm2 of break load per solid cross-sectional filament area;
- and
- wherein each of the plurality of filaments has an outer diameter of about 0.001 inches, for an overall cable diameter of about 0.025 inches.
Dependencies are inferred from the claim text.