Process for forming a chromium diffusion portion and articles made therefrom
Abstract
In one embodiment, a method for forming an article with a diffusion portion comprises: forming a slurry comprising chromium and silicon, applying the slurry to the article, and heating the article to a sufficient temperature and for a sufficient period of time to diffuse chromium and silicon into the article and form a diffusion portion comprising silicon and a microstructure comprising .alpha.-chromium. In one embodiment, a gas turbine component comprises: a superalloy and a diffusion portion having a depth of less than or equal to 60 .mu.m measured from the superalloy surface into the gas turbine component. The diffusion portion has a diffusion surface having a microstructure comprising greater than or equal to 40% by volume .alpha.-chromium.
- Inventors:
- Issue Date:
- Research Org.:
- General Electric Co., Schenectady, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1078339
- Patent Number(s):
- 8262812
- Application Number:
- 11/696,385
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- FC26-05NT42643
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Helmick, David Andrew, Cavanaugh, Dennis William, Feng, Ganjiang, and Bucci, David Vincent. Process for forming a chromium diffusion portion and articles made therefrom. United States: N. p., 2012.
Web.
Helmick, David Andrew, Cavanaugh, Dennis William, Feng, Ganjiang, & Bucci, David Vincent. Process for forming a chromium diffusion portion and articles made therefrom. United States.
Helmick, David Andrew, Cavanaugh, Dennis William, Feng, Ganjiang, and Bucci, David Vincent. Tue .
"Process for forming a chromium diffusion portion and articles made therefrom". United States. https://www.osti.gov/servlets/purl/1078339.
@article{osti_1078339,
title = {Process for forming a chromium diffusion portion and articles made therefrom},
author = {Helmick, David Andrew and Cavanaugh, Dennis William and Feng, Ganjiang and Bucci, David Vincent},
abstractNote = {In one embodiment, a method for forming an article with a diffusion portion comprises: forming a slurry comprising chromium and silicon, applying the slurry to the article, and heating the article to a sufficient temperature and for a sufficient period of time to diffuse chromium and silicon into the article and form a diffusion portion comprising silicon and a microstructure comprising .alpha.-chromium. In one embodiment, a gas turbine component comprises: a superalloy and a diffusion portion having a depth of less than or equal to 60 .mu.m measured from the superalloy surface into the gas turbine component. The diffusion portion has a diffusion surface having a microstructure comprising greater than or equal to 40% by volume .alpha.-chromium.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 11 00:00:00 EDT 2012},
month = {Tue Sep 11 00:00:00 EDT 2012}
}