Product manufacture in structural metallic materials reinforced with carbides
AssigneeFundacion Inasmet
InventorsIgnacio Erauskin Lopetegui, Manuel Gutierrez Stampa, Inigo Agote Beloki, Manuel Orbegozo Ibarguren
Life of this patent
Estimating the term…
Abstract
The present invention develops a manufacture method, via conventional liquid metallurgy, of finished and semi-finished metallic parts as casting, ingot, blooms and slabs in alloys base Fe, base Ni and base Co, microstructurally reinforced with complex molybdenum and titanium carbide particles, by means of their previous elaboration and latter addition to the molten alloy in the melting furnace. Then, when the alloy solidifies, they are inserted and distributed within the grains of the base metallic matrix, enhancing their mechanical properties and behavior at room as well as at high temperatures.
Claims11
Product manufacture method, via liquid metallurgy, of structural metallic materials base Fe, base Ni, and base Co, reinforced with X(MoTi)C previously made carbides, wherein the proportions of said carbides are TiC:
- 50-90%;
- Mo≧5%;
- X≧50% and wherein the X(MoTi)C carbides are made from elemental powder materials containing their constituent elements X, Ti, Mo, and C, by self-propagating high temperature synthesis due to the heat released in the exothermic carbide formation reactions and without external energy contribution except for initiating the synthesis reaction, whereby once a first reaction between Ti and C begins, temperature rises quickly due to liberated heat facilitating a second reaction with Mo.
Dependencies are inferred from the claim text.