Patent ID: 8747515
Filing Date: 2014-06-10
Classification: B22F,C22C

Abstract:
1. A fully-dense, discontinuously-reinforced, sintered titanium matrix composite material having improved mechanical characteristics including toughness, flexure strength, impact strength, and wear resistance, and having an essentially uniform structure suitable for forming flat or shaped composite articles, comprising (a) a matrix of titanium or titanium alloy as a major component, (b) ceramic and/or intermetallic hard particles dispersed in the matrix in the amount greater than zero, and less than 50% by volume, which include particles of the compound Al (c) particles that are complex carbides, that are at least partially soluble in the matrix at the sintering or forging temperatures, or complex silicides that are at least partially soluble in the matrix at the sintering or forging temperatures, or both, wherein the ceramic and/or intermetallic hard particles dispersed in the matrix are incorporated into the titanium matrix composite during the preparation and before sintering of a basic powdered blend to produce near-full density parts from a titanium matrix composite material that has acceptable mechanical properties without a need for further hot deformation.