Unlock instant, AI-driven research and patent intelligence for your innovation.

Titanium aluminide article with improved surface finish

An aluminide, product technology, applied in sustainable transportation, climate sustainability, air transportation, etc., can solve the problem of alloy limited ductility cracking susceptibility hindering improvement of surface finish of cast products, high cost, manufacturing delay, etc.

Active Publication Date: 2018-09-07
GENERAL ELECTRIC CO
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In either case, however, tooling and labor are costly and lead to manufacturing delays
[0007] In addition, the limited ductility and susceptibility to cracking of alloys including titanium aluminide cast articles can prevent improvement of the surface finish of cast articles using conventional grinding and polishing techniques

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Titanium aluminide article with improved surface finish
  • Titanium aluminide article with improved surface finish
  • Titanium aluminide article with improved surface finish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present disclosure generally relates to articles containing titanium and titanium alloys having improved surface finish, and methods for improving surface finish on such articles. In one example, the present disclosure relates to turbine blades exhibiting superior properties with improved surface finish and methods of making the same.

[0031] Conventional gas and steam turbine blade designs typically have airfoil portions made entirely of metal or composites. All-metal blades, including expensive wide-chord hollow blades, are heavier in weight, resulting in lower fuel performance and requiring stronger blade attachment. In gas turbine flight applications, gas turbine blades operating in the hot gas path are exposed to some of the highest temperatures in the gas turbine. Various design approaches have been made in an effort to increase blade life and performance in the hot gas path. As used herein, the term "turbine blade" refers to steam turbine blades and gas tu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
mean roughnessaaaaaaaaaa
surface roughnessaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The present invention relates to titanium aluminide articles with improved surface finish, provides titanium-containing articles with improved surface finish and methods for modifying the surface of titanium-containing articles, eg, by removing residue. An example method includes: passing a high pressure fluid at a high linear velocity over a surface of an article of titanium aluminide alloy, such as a turbine blade; deforming the surface of the article of titanium aluminide alloy; Surface removal of material. While aspects of the present invention may be used in the manufacture of high performance turbine blades, the methods disclosed herein may be applied to any titanium-containing article where improved surface finish is difficult to achieve.

Description

technical field [0001] The present invention relates to titanium aluminide articles with improved surface finish. Background technique [0002] Modern gas turbines, especially aircraft engines, must meet the highest requirements regarding reliability, weight, power, economy and operational lifetime. In the development of aircraft engines, material selection, the search for new suitable materials, and the search for new preparation methods play an important role in meeting standards and meeting requirements. [0003] Materials used in aircraft engines or other gas turbines include titanium alloys, nickel alloys (also known as superalloys), and high-strength steels. Titanium alloys are commonly used in compressor components, nickel alloys are suitable for hot parts in aircraft engines, and high-strength steels are used, for example, in compressor casings and turbine casings. Highly loaded or stressed gas turbine components, such as those used in compressors, are typically fo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23F4/00C22F1/18
CPCB24C1/04
Inventor B.P.布莱J.S.詹森魏斌周幼东
Owner GENERAL ELECTRIC CO