Refractory metal alloy

Patent metadata

Field	Value
Publication number	US-11761064-B2
Application number	US-202017126775-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Dec 18, 2020
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A refractory metal alloy includes at least three metal components. At least one of the metal components is a refractory metal selected from the group of Mo, Nb, W, Ti, V, Cr, Mn, Y, Zr, Hf, Ta, Fe, Co, Al, Mn. The refractory metal alloy also includes two nonmetal components. The refractory metal alloy comprises non-trace amounts of each of the metal components and each of the nonmetal components. A component is also disclosed.

First claim

What is claimed is:

1. A refractory metal alloy, comprising:
at least four metal components, wherein one of the metal components is W or Ta, two of the remaining three metal components are selected from the group of Nb, V, Cr, and the other of W or Ta, wherein the at least three of the four metal components are M 1 , M 2 , and M 3 , wherein the atomic percent of M 1 ≥M 2 ≥M 3 , and wherein the atomic percent of M 1 <50, wherein M 1 is Mo and wherein when Nb is present, the Nb is present in an amount that is less than the amount of Mo; and
two nonmetal components, wherein the refractory metal alloy comprises at least 10 atomic percent of each of the metal components and at least 5 atomic percent of each of the nonmetal components, wherein the two nonmetal components together comprise less than 20 atomic percent of the refractory metal alloy.

2. The refractory metal alloy of claim 1 , wherein the two nonmetal components are silicon and boron.

3. The refractory metal alloy of claim 1 , wherein three of the four metal components include Mo, Ta, and Cr.

4. The refractory metal alloy of claim 1 , wherein one of M 2 and M 3 is Nb.

5. The refractory metal alloy of claim 1 , wherein one of M 2 and M 3 is W.

6. The refractory metal alloy of claim 1 , wherein the two nonmetal components together comprise between 15 and 20 atomic percent of the refractory metal alloy.

7. A component, comprising:
a refractory metal alloy, including molybdenum, a second metal component M 2 , a third metal component M 3 , a fourth metal component, silicon, and boron, wherein the atomic percent of molybdenum≥M 2 ≥M 3 , and wherein the atomic percent of molybdenum<50, wherein one of the second metal component M 2 and the third metal component M 3 are W or Ta, and wherein one of M 2 and M 3 is Nb, wherein each of molybdenum, the second metal component, and the third metal component comprise at least 10 atomic percent of the refractory metal alloy, and wherein the combined atomic percent of silicon and boron is less than 20 atomic percent.

8. The component of claim 7 , wherein M 2 and M 3 are refractory metals.

9. The component of claim 7 , wherein M 2 has a larger atomic volume than molybdenum and M 3 has a smaller atomic volume than molybdenum.

10. The component of claim 7 , wherein the component is a component of a gas turbine engine.

Assignees

• Raytheon Tech Corp
• Rtx Corp

Inventors

• Jackson Richard Wesley
• Sharon John A
• Deacon Ryan M

Classifications

• C22C27/04 Primary

  Alloys based on tungsten or molybdenum · CPC title

• C22C30/00

  Alloys containing less than 50% by weight of each constituent · CPC title