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WO1998022629A3 - A new class of beta titanium-based alloys with high strength and good ductility - Google Patents

A new class of beta titanium-based alloys with high strength and good ductility Download PDF

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Publication number
WO1998022629A3
WO1998022629A3 PCT/US1997/022311 US9722311W WO9822629A3 WO 1998022629 A3 WO1998022629 A3 WO 1998022629A3 US 9722311 W US9722311 W US 9722311W WO 9822629 A3 WO9822629 A3 WO 9822629A3
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WO
WIPO (PCT)
Prior art keywords
percent
alloy
hot
worked
based alloys
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1997/022311
Other languages
French (fr)
Other versions
WO1998022629A2 (en
Inventor
Dongjian Li
Kevin J Doherty
Gary J Shiflet
S Joseph Poon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1998022629A2 publication Critical patent/WO1998022629A2/en
Publication of WO1998022629A3 publication Critical patent/WO1998022629A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18—High-melting or refractory metals or alloys based thereon
    • C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Forging (AREA)

Abstract

A new class of beta titanium-based alloys having an excellent combination of high yield strength, up to 1650 MPa, with an elongation of 10 % in the aged condition. This alloy can be hot-worked or cold-worked. The hot-working may include forging or hot-rolling which may be conducted at a temperature around beta transus temperature of the alloy. However, maximum strength/ductility combination comes from an as-cast product which is deformed (rolled/forged) at very high temperature (∩1100 °C) followed by aging. This gives a slightly cold worked, homogeneous, porosity-free structure of α precipitates in a β matrix. The alloy has a total beta stabilizer content of 20 % to 25 % (weight percent) with no alpha stabilizer. The composition, in percent by weight, is chromium 4 to 7 percent, preferably around 6; copper 3 to 5 percent, preferably 3.5 to 4.5; molybdenum 11 to 13 percent, and balance titanium and incidental impurities.
PCT/US1997/022311 1996-11-22 1997-11-21 A new class of beta titanium-based alloys with high strength and good ductility Ceased WO1998022629A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3169496P 1996-11-22 1996-11-22
US60/031,694 1996-11-22

Publications (2)

Publication Number Publication Date
WO1998022629A2 WO1998022629A2 (en) 1998-05-28
WO1998022629A3 true WO1998022629A3 (en) 1998-07-30

Family

ID=21860898

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/022311 Ceased WO1998022629A2 (en) 1996-11-22 1997-11-21 A new class of beta titanium-based alloys with high strength and good ductility

Country Status (1)

Country Link
WO (1) WO1998022629A2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1646718A (en) 2002-02-11 2005-07-27 弗吉尼亚大学专利基金会 Bulk-solidified high-manganese non-ferromagnetic amorphous alloy steel and related methods for its use and preparation
US20040221929A1 (en) 2003-05-09 2004-11-11 Hebda John J. Processing of titanium-aluminum-vanadium alloys and products made thereby
USRE47863E1 (en) 2003-06-02 2020-02-18 University Of Virginia Patent Foundation Non-ferromagnetic amorphous steel alloys containing large-atom metals
US7763125B2 (en) 2003-06-02 2010-07-27 University Of Virginia Patent Foundation Non-ferromagnetic amorphous steel alloys containing large-atom metals
WO2005024075A2 (en) 2003-06-02 2005-03-17 University Of Virginia Patent Foundation Non-ferromagnetic amorphous steel alloys containing large-atom metals
US7837812B2 (en) * 2004-05-21 2010-11-23 Ati Properties, Inc. Metastable beta-titanium alloys and methods of processing the same by direct aging
US9051630B2 (en) 2005-02-24 2015-06-09 University Of Virginia Patent Foundation Amorphous steel composites with enhanced strengths, elastic properties and ductilities
US8337750B2 (en) 2005-09-13 2012-12-25 Ati Properties, Inc. Titanium alloys including increased oxygen content and exhibiting improved mechanical properties
US7611592B2 (en) 2006-02-23 2009-11-03 Ati Properties, Inc. Methods of beta processing titanium alloys
US10053758B2 (en) 2010-01-22 2018-08-21 Ati Properties Llc Production of high strength titanium
US9255316B2 (en) 2010-07-19 2016-02-09 Ati Properties, Inc. Processing of α+β titanium alloys
US8613818B2 (en) 2010-09-15 2013-12-24 Ati Properties, Inc. Processing routes for titanium and titanium alloys
US9206497B2 (en) 2010-09-15 2015-12-08 Ati Properties, Inc. Methods for processing titanium alloys
US10513755B2 (en) 2010-09-23 2019-12-24 Ati Properties Llc High strength alpha/beta titanium alloy fasteners and fastener stock
US8652400B2 (en) 2011-06-01 2014-02-18 Ati Properties, Inc. Thermo-mechanical processing of nickel-base alloys
US9869003B2 (en) 2013-02-26 2018-01-16 Ati Properties Llc Methods for processing alloys
US9192981B2 (en) 2013-03-11 2015-11-24 Ati Properties, Inc. Thermomechanical processing of high strength non-magnetic corrosion resistant material
US9777361B2 (en) 2013-03-15 2017-10-03 Ati Properties Llc Thermomechanical processing of alpha-beta titanium alloys
US11111552B2 (en) 2013-11-12 2021-09-07 Ati Properties Llc Methods for processing metal alloys
US10094003B2 (en) 2015-01-12 2018-10-09 Ati Properties Llc Titanium alloy
US10502252B2 (en) 2015-11-23 2019-12-10 Ati Properties Llc Processing of alpha-beta titanium alloys
US12344918B2 (en) 2023-07-12 2025-07-01 Ati Properties Llc Titanium alloys

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053330A (en) * 1976-04-19 1977-10-11 United Technologies Corporation Method for improving fatigue properties of titanium alloy articles
US5431754A (en) * 1992-10-05 1995-07-11 Honda Giken Kogyo Kabushiki Kaisha TiAl-based intermetallic compound with excellent high temperature strength
US5626691A (en) * 1995-09-11 1997-05-06 The University Of Virginia Patent Foundation Bulk nanocrystalline titanium alloys with high strength

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053330A (en) * 1976-04-19 1977-10-11 United Technologies Corporation Method for improving fatigue properties of titanium alloy articles
US5431754A (en) * 1992-10-05 1995-07-11 Honda Giken Kogyo Kabushiki Kaisha TiAl-based intermetallic compound with excellent high temperature strength
US5626691A (en) * 1995-09-11 1997-05-06 The University Of Virginia Patent Foundation Bulk nanocrystalline titanium alloys with high strength

Also Published As

Publication number Publication date
WO1998022629A2 (en) 1998-05-28

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