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Processing of α/β titanium alloys

  • US 9,765,420 B2
  • Filed: 01/25/2016
  • Issued: 09/19/2017
  • Est. Priority Date: 07/19/2010
  • Status: Active Grant
First Claim
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1. A process comprising:

  • cold drawing an α



    titanium alloy workpiece at a temperature in the range of ambient temperature to 500°

    F.; and

    direct aging the cold drawn α



    titanium alloy workpiece at a temperature in the range of 700°

    F. to 1200°

    F.;

    the α



    titanium alloy comprising, in weight percentages, from 2.90 to 5.00 aluminum, from 2.00 to 3.00 vanadium, from 0.40 to 2.00 iron, from 0.10 to 0.30 oxygen, titanium, and incidental impuritieswherein the cold drawing and direct aging forms an α



    titanium alloy article having an ultimate tensile strength in the range of 155 ksi to 200 ksi and an elongation in the range of 8% to 20%, at ambient temperature, and wherein the α



    titanium alloy article is selected from the group consisting of a billet, a bar, a rod, a tube, a slab, a plate, and a fastener.

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