AR016808A1 - A SINTERED MATERIAL AND A POWDER USED TO PREPARE SUCH SINTERED MATERIAL. - Google Patents
A SINTERED MATERIAL AND A POWDER USED TO PREPARE SUCH SINTERED MATERIAL.Info
- Publication number
- AR016808A1 AR016808A1 ARP980103911A ARP980103911A AR016808A1 AR 016808 A1 AR016808 A1 AR 016808A1 AR P980103911 A ARP980103911 A AR P980103911A AR P980103911 A ARP980103911 A AR P980103911A AR 016808 A1 AR016808 A1 AR 016808A1
- Authority
- AR
- Argentina
- Prior art keywords
- particles
- sintered material
- alloys
- cobalt
- boron
- Prior art date
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
Un material sinterizado y el polvo duro con recubrimiento tenaz (TCHP) para elaborar tal material comprende partículas nucleo que consisten esencialmenteen un primer compuesto metálico de formula MaXb, donde M es un metal seleccionado de un grupocon sistente en titanio, circonio, hafnio, vanadio, niobio,tantalio, cromo, molibdeno, tungsteno, aluminio, boro y silicio; mientras X representa uno o más elementos seleccionados de un grupo consistente en nitrogeno,carbono, boro y oxígeno. Lasletras a y b representan numeros mayores que cero y menores e iguales a cuatro. Las partículas nucleo están circundadas deuna capa intermedia que consiste esencialmente en un segundo compuesto metálico, diferente en cuanto a composicion del primercompuesto metálico que con ésteconforman partículas recubiertas. El material de la capa intermedia tiene una mayor tenacidad relativa a la fractura que el material que compone las partículasnucleo y es capaz de unirse con los compuestos metálicosque conforman las partículas nucleo y también con hierro, cobalto o níquel. Las partículas recubiertasestán rodeadas de una capa exterior de hierro, cobalto, níquel, sus aleaciones, sus mezclasy sus compuestos intermediarios. La íntima relacion delasaleaciones d e multiples propiedades dentro de los granos TCHP, permite combinar las características de performance de los artículos sinterizados, quenormalmente son conflictivas ( por ejemplo, resistencia y dureza).A sintered material and the tough powder with tough coating (TCHP) for making such material comprises core particles consisting essentially of a first metallic compound of formula MaXb, where M is a metal selected from a group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, aluminum, boron and silicon; while X represents one or more elements selected from a group consisting of nitrogen, carbon, boron and oxygen. The letters a and b represent numbers greater than zero and less than and equal to four. The core particles are surrounded by an intermediate layer consisting essentially of a second metal compound, different in terms of the composition of the first metal compound that forms coated particles with it. The material of the intermediate layer has a higher fracture toughness than the material that composes the nucleus particles and is capable of bonding with the metal compounds that make up the nucleus particles and also with iron, cobalt or nickel. The coated particles are surrounded by an outer layer of iron, cobalt, nickel, their alloys, mixtures and intermediates. The intimate relationship of the alloys of the multiple properties within the TCHP grains, allows to combine the performance characteristics of the sintered articles, which are normally conflicting (for example, resistance and hardness).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1998/009767 WO1998051419A1 (en) | 1997-05-13 | 1998-05-13 | Tough-coated hard powders and sintered articles thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR016808A1 true AR016808A1 (en) | 2001-08-01 |
Family
ID=45607461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP980103911A AR016808A1 (en) | 1998-05-13 | 1998-08-07 | A SINTERED MATERIAL AND A POWDER USED TO PREPARE SUCH SINTERED MATERIAL. |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR016808A1 (en) |
-
1998
- 1998-08-07 AR ARP980103911A patent/AR016808A1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration |