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Title: Structural alloy with a protective coating containing silicon or silicon-oxide

An iron-based alloy is described containing chromium and optionally, nickel. The alloy has a surface barrier of silicon or silicon plus oxygen which converts at high temperature to a protective silicon compound. The alloy can be used in oxygen-sulfur mixed gases at temperatures up to about 1100 C. 8 figures.
Inventors:
Issue Date:
OSTI Identifier:
6659482
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-95-029121
Patent Number(s):
US 5376458; A
Application Number:
PPN: US 7-983188
Contract Number:
W-31109-ENG-38
Resource Relation:
Patent File Date: 30 Nov 1992
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHROMIUM ALLOYS; CORROSION RESISTANCE; PROTECTIVE COATINGS; IRON BASE ALLOYS; NICKEL ALLOYS; SILICON; SURFACE COATING; SILICON OXIDES; CORROSION RESISTANT ALLOYS; CORROSIVE EFFECTS; HEAT RESISTING ALLOYS; SULFUR COMPOUNDS; ALLOYS; CHALCOGENIDES; COATINGS; DEPOSITION; ELEMENTS; HEAT RESISTANT MATERIALS; IRON ALLOYS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; SEMIMETALS; SILICON COMPOUNDS 360100* -- Metals & Alloys