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Title: Method of coating an iron-based article

Abstract

A method of coating an iron-based article includes a first heating step of heating a substrate that includes an iron-based material in the presence of an aluminum source material and halide diffusion activator. The heating is conducted in a substantially non-oxidizing environment, to cause the formation of an aluminum-rich layer in the iron-based material. In a second heating step, the substrate that has the aluminum-rich layer is heated in an oxidizing environment to oxidize the aluminum in the aluminum-rich layer.

Inventors:
; ; ;
Issue Date:
Research Org.:
United Technologies Corporation, Hartford, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1333737
Patent Number(s):
9506136
Application Number:
13/613,188
Assignee:
United Technologies Corporation (Hartford, CT)
Patent Classifications (CPCs):
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
DOE Contract Number:  
NT0003894
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Sep 13
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Magdefrau, Neal, Beals, James T., Sun, Ellen Y., and Yamanis, Jean. Method of coating an iron-based article. United States: N. p., 2016. Web.
Magdefrau, Neal, Beals, James T., Sun, Ellen Y., & Yamanis, Jean. Method of coating an iron-based article. United States.
Magdefrau, Neal, Beals, James T., Sun, Ellen Y., and Yamanis, Jean. Tue . "Method of coating an iron-based article". United States. https://www.osti.gov/servlets/purl/1333737.
@article{osti_1333737,
title = {Method of coating an iron-based article},
author = {Magdefrau, Neal and Beals, James T. and Sun, Ellen Y. and Yamanis, Jean},
abstractNote = {A method of coating an iron-based article includes a first heating step of heating a substrate that includes an iron-based material in the presence of an aluminum source material and halide diffusion activator. The heating is conducted in a substantially non-oxidizing environment, to cause the formation of an aluminum-rich layer in the iron-based material. In a second heating step, the substrate that has the aluminum-rich layer is heated in an oxidizing environment to oxidize the aluminum in the aluminum-rich layer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}

Works referenced in this record:

Diffusion coating method
patent, January 1977


Aluminized steel alloys containing chromium
patent, January 1997


Method for chromium coating a surface and tape useful in practicing the method
patent, October 1997


Low activity localized aluminide coating
patent, February 2000


Low activity localized aluminide coating
patent, April 2000


Slurry compositions for diffusion coatings
patent, August 2000


Coated turbine component and its fabrication
patent, September 2001


Coating system for high temperature stainless steel
patent, July 2003


Ferritic steels for solid oxide fuel cells and other high temperature applications
patent, June 2010


Process of applying a coating system
patent, December 2011