Repair article of a gas turbine engine

Patent metadata

Field	Value
Publication number	US-9885240-B2
Application number	US-201313972966-A
Country	US
Kind code	B2
Filing date	Aug 22, 2013
Priority date	Apr 23, 2008
Publication date	Feb 6, 2018
Grant date	Feb 6, 2018

Abstract

A repaired article includes a body extending between a first side and a second side. The body has a repair section with an associated thickness between the first side and the second side. The repair section includes regions of plastic deformation distributed through the thickness. A gas turbine engine including the body is also disclosed.

First claim

What is claimed is:

1. A repaired article comprising:
a body extending between a first side and a second side, the body including a repair section having an associated thickness between the first side and the second side, and the repair section includes regions of plastic deformation distributed through the thickness, wherein the repair section includes a microstructure that is substantially free of orthorhombic delta phase regions of Ni 3 Cb and the body is made of an alloy comprising about 50-55 wt % nickel and about 4.75-5.5 wt % columbium.

2. The repaired article as recited in claim 1 , wherein at least a portion of the body includes an airfoil having a leading edge and a trailing edge.

3. The repaired article as recited in claim 2 , wherein the repair section is located at the leading edge of the airfoil.

4. The repaired article as recited in claim 2 , wherein the repair section is located at the trailing edge of the airfoil.

5. The repaired article as recited in claim 1 , wherein the body includes a microstructure with a first composition and a first phase distributed within the first composition.

6. The repaired article as recited in claim 5 , wherein the first composition is a nickel-based alloy.

7. The repaired article as recited in claim 1 , wherein the alloy further comprises about 17-21 wt % chromium, about 0.65-1.15 wt % titanium, about 0.2-0.8 wt % aluminum, about 0-1 wt % cobalt, about 2.8-3.3 wt % molybdenum, and a balance of iron.

8. The repaired article as recited in claim 1 , wherein at least a portion of the body is precipitation-strengthened.

9. The repaired article as recited in claim 1 , wherein the repair section is formed by depositing a powder on the article.

10. The repaired article as recited in claim 1 , wherein the regions of plastic deformation extend entirely through the thickness.

11. A gas turbine engine, comprising:
a body extending between a first side and a second side, the body including a repair section having an associated thickness between the first side and the second side, and the repair section includes regions of plastic deformation distributed through the thickness, wherein the repair section includes a microstructure that is substantially free of orthorhombic delta phase regions of Ni 3 Cb and the body is made of an alloy comprising about 50-55 wt % nickel and about 4.75-5.5 wt % columbium.

12. The gas turbine engine of claim 11 , wherein the body is arranged in a compressor section.

13. The gas turbine engine of claim 12 , wherein the body includes a microstructure that includes a first composition and a first phase distributed within the first composition.

14. The gas turbine engine of claim 11 , wherein the body is arranged in a turbine section.

15. The gas turbine engine of claim 14 , wherein the body includes a microstructure that includes a first composition and a first phase distributed within the first composition.

16. The gas turbine engine of claim 11 , wherein the comprises about 17-21 wt % chromium, about 0.65-1.15 wt % titanium, about 0.2-0.8 wt % aluminum, about 0-1 wt % cobalt, about 2.8-3.3 wt % molybdenum, and a balance of iron.

Assignees

• United Technologies Corp

Inventors

• Szela Edward R
• Joy Michael A
• Bales Daniel A
• Cowles Bradford A
• Rutz David A

Classifications

• Y10T29/49746

  by applying fluent material, e.g., coating, casting · CPC title

• Y10T29/49318

  Repairing or disassembling · CPC title

• Y10T29/49734

  and removing damaged material · CPC title

• F01D5/005 Primary

  Repairing methods or devices · CPC title

• Y10T29/4975

  including heating · CPC title