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1. WO2020091915 - TITANIUM ALLOY WITH MODERATE STRENGTH AND HIGH DUCTILITY

Publication Number WO/2020/091915
Publication Date 07.05.2020
International Application No. PCT/US2019/053007
International Filing Date 25.09.2019
IPC
C22C 14/00 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
14Alloys based on titanium
C22F 1/18 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
16of other metals or alloys based thereon
18High-melting or refractory metals or alloys based thereon
CPC
C22C 14/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
14Alloys based on titanium
C22F 1/183
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
16of other metals or alloys based thereon
18High-melting or refractory metals or alloys based thereon
183of titanium or alloys based thereon
Applicants
  • TITANIUM METALS CORPORATION [US]/[US]
Inventors
  • THOMAS, Roger, Owen
  • JAMES, Steven
  • GARRATT, Paul
  • THOMAS, Matthew
Agents
  • HARPER, Mark, A.
Priority Data
62/736,22925.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TITANIUM ALLOY WITH MODERATE STRENGTH AND HIGH DUCTILITY
(FR) ALLIAGE DE TITANE À RÉSISTANCE MODÉRÉE ET À HAUTE DUCTILITÉ
Abstract
(EN)
A titanium alloy composition is provided. In weight percent (wt.%), the alloy includes 5.7 to 8.0% vanadium, 0.5 to 1.75% aluminum, 0.25 to 1.5% iron, 0.1 to 0.2% oxygen, up to 0.15% silicon, up to 0.1% carbon and less than 0.03% nitrogen is provided. In one form, the titanium alloy has a 0.2% yield strength between 600 to 850 MPa, an ultimate tensile strength between 700 to 950 MPa, a percent elongation to failure between 20 to 30%, a percent reduction in area between 40 to 80%, a Charpy U-notch impact energy between 30 to 70 J, and/or a Charpy V-notch impact energy between 40 to 150 J.
(FR)
L'invention concerne une composition d'alliage de titane. En pourcentage en poids (% en poids), l'alliage comprend 5,7 à 8,0 % de vanadium, 0,5 à 1,75 % d'aluminium, 0,25 à 1,5 % de fer, 0,1 à 0,2 % d'oxygène, jusqu'à 0,15 % de silicium, jusqu'à 0,1 % de carbone et moins de 0,03 % d'azote. Sous une certaine forme, ledit alliage de titane présente une limite d'élasticité de 0,2 % entre 600 et 850 MPa, une résistance à la traction entre 700 et 950 MPa, un pourcentage d'allongement à la rupture entre 20 et 30 %, un coefficient de striction compris entre 40 et 80 %, une énergie d'impact Charpy avec entaille en U comprise entre 30 et 70 J et/ou une énergie d'impact Charpy avec entaille en V comprise entre 40 et 150 J.
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