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Title: 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 Company, Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1234230
Patent Number(s):
9,222,164
Application Number:
13/226,126
Assignee:
General Electric Company
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Sep 06
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 24 POWER TRANSMISSION AND DISTRIBUTION

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., 2015. 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/1234230.
@article{osti_1234230,
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 = {2015},
month = {12}
}

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