Processing of titanium-aluminum-vanadium alloys and products made thereby

a technology of titanium alloy and titanium alloy, which is applied in the direction of metal rolling arrangement, etc., can solve the problems of high energy input requirements, high cost of finished ballistic plate, and high cost of production process for producing ballistic armor plate from above titanium alloys
US20040221929A1Inactive Publication Date: 2004-11-11ATI PROPERTIES
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Patent Information

Authority / Receiving Office
US Ā· United States
Patent Type
Applications(United States)
Current Assignee / Owner
ATI PROPERTIES
Publication Date
2004-11-11
Estimated Expiration
Not applicable Ā· inactive patent
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Abstract

A method of forming an article from an alpha-beta titanium including, in weight percentages, from about 2.9 to about 5.0 aluminum, from about 2.0 to about 3.0 vanadium, from about 0.4 to about 2.0 iron, from about 0.2 to about 0.3 oxygen, from about 0.005 to about 0.3 carbon, from about 0.001 to about 0.02 nitrogen, and less than about 0.5 of other elements. The method comprises cold working the alpha-beta titanium alloy.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to novel methods of processing certain titanium alloys comprising aluminum, vanadium, iron, and oxygen, to articles made using such processing methods, and to novel articles including such alloys.DESCRIPTION OF THE INVENTION BACKGROUND

[0002] Beginning at least as early as the 1950's, titanium was recognized to have properties making it attractive for use as structural armor against small arms projectiles. Investigation of titanium alloys for the same purpose followed. One titanium alloy known for use as ballistic armor is the Ti-6Al-4V alloy, which nominally comprises titanium, 6 weight percent aluminum, 4 weight percent vanadium and, typically, less than 0.20 weight percent oxygen. Another titanium alloy used in ballistic armor applications includes 6.0 weight percent aluminum, 2.0 weight percent iron, a relatively low oxygen content of 0.18 weight percent, less than 0.1 weight percent vanadium, and possibly other trace ele...

Claims

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