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Surface modification of high temperature iron alloys

Patent ·
OSTI ID:869916
 [1]
  1. Clarendon Hills, IL
+ Show Author Affiliations
A method and article of manufacture of a coated iron based alloy. The method includes providing an iron based alloy substrate, depositing a silicon containing layer on the alloy surface while maintaining the alloy at a temperature of about 700.degree. C.-1200.degree. C. to diffuse silicon into the alloy surface and exposing the alloy surface to an ammonia atmosphere to form a silicon/oxygen/nitrogen containing protective layer on the iron based alloy.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL
DOE Contract Number:
W-31109-ENG-38
Assignee:
University of Chicago (Chicago, IL)
Patent Number(s):
US 5421914
OSTI ID:
869916
Country of Publication:
United States
Language:
English

References (4)

Effect of y on Cation and Anion Grain Boundary Diffusion in Chromia journal January 1990
Electronic transport in thermally grown Cr2O3 journal February 1990
Role of yttrium in enhanced adhesion of chromia scale to chromium journal October 1989
Oxidation behavior of iron-chromium alloys at elevated temperatures: A reactive-element effect report March 1992

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