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US 12,590,357 B2Granted
Method for carbide dispersion strengthened high performance metallic materials
AssigneeBrunel University London
InventorsHari Babu Nadendla, Xinliang Yang
Life of this patent
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Abstract
A method of preparing a mixture of a metal or metal alloy and (NbxTi1-x)C (where 0<x≤1) in which (NbxTi1-x)C in particulate form (either with or without metal powder) is formed into a preform and then if necessary added to the metal. The resulting (NbxTi1-x)C/metal mixture can then be heated to a temperature below the melting point of the (NbxTi1-x)C and optionally dispersed in liquid metal and/or casted and cooled to produce a solid product with improved physical properties.
Claims18
A method of preparing a mixture of a metal or metal alloy and (NbxTi1-x)C where 0<x≤1, including the steps of:
- (Ai) providing (NbxTi1-x)C in the form of particles,
- (Aii) mixing the (NbxTi1-x)C with particles of metal or metal alloy,
- (Aiii) forming said particles into a preform by compression or by placing said particles into a mould,
- (Aiv) optionally adding said preform to metal or metal alloy, and
- (Av) optionally heating said preform to a temperature below the melting point of (NbxTi1-x)C;
- or
- (Bi) providing (NbxTi1-x)C in the form of particles,
- (Bii) forming said particles into a preform by compression or by placing said particles into a mould, and
- (Biii) adding said preform to metal or metal alloy, and
- (Biv) optionally heating said mixture to a temperature below the melting point of (NbxTi1-x)C in order to melt the metal or metal alloy,
- wherein the method additionally includes the step of adding the resulting mixture of a metal or metal alloy and (NbxTi1-x)C to a metal or metal alloy in liquid form and dispersing said mixture in the liquid metal or metal alloy;
- and
- wherein the method additionally includes the step of casting said dispersed mixture in order to create a master alloy.
10 more elements
Dependencies are inferred from the claim text.