Iron-based alloys with corrosion resistance to oxygen-sulfur mixed gases

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868543

Natesan, Krishnamurti ^[1]

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1. Naperville, IL

An iron-based alloy with improved performance with exposure to oxygen-sulfur mixed gases with the alloy containing about 9-30 wt. % Cr and a small amount of Nb and/or Zr implanted on the surface of the alloy to diffuse a depth into the surface portion, with the alloy exhibiting corrosion resistance to the corrosive gases without bulk addition of Nb and/or Zr and without heat treatment at temperatures of 1000.degree.-1100.degree. C.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 5164270
• OSTI ID: 868543
• Country of Publication: United States
• Language: English

Related Subjects

iron-based
alloys
corrosion
resistance
oxygen-sulfur
mixed
gases
alloy
improved
performance
exposure
containing
9-30
wt
amount
nb
zr
implanted
surface
diffuse
depth
portion
exhibiting
corrosive
bulk
addition
heat
treatment
temperatures
1000
degree
-1100
mixed gas
improved performance
corrosion resistance
alloy containing
surface portion
heat treatment
corrosive gases
mixed gases
based alloy
oxygen-sulfur mixed
corrosive gas
alloy exhibiting
iron-based alloy
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