Development of Low Chromium Substitute Alloys for High Temperature Applications

Details

• Personal Author:
  Oh, Je M.
• Description:
  This paper describes the oxidation of a base-line Fe-8Cr-16Ni (weight percent) composition, compared to that of alloys with small additions of Al, Si, Mo, and Mn. Oxidation was done in air over the temperature range of 600 deg-1000 deg C for up to 1000h. Alloys that contained Al and Si showed excellent oxidation resistance because of the formation of a layer containing Si at the scale-metal interface. Small additions of Al seemed to form oxide nuclei during a transient oxidation period, aided the formation of a layer containing Si and/or a chromium oxide, and provided better oxide adherence. Molybdenum and manganese additions stabilized a fully austenitic microstructure at room temperature. The oxidation behavior of these alloys was compared to that of 304 stainless steel and some commercial superalloys. Reaction kinetics, oxide morphologies, and oxidation mechanisms of the substitute alloys are described. [Description provided by NIOSH]
• Subjects:
  Metals Minerals Mining Occupational Health Safety
• Keywords:
  Alloying Additions Aluminium Author Keywords: Oxidation Chromium Alloys Corrosion Resistance Crystal Microstructure Crystal Morphology High-temperature Effects Manganese Mineral-processing Mining-industry Molybdenum Reaction Kinetics Silicon

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• Series:
  Mining Publications
• ISSN:
  0013-4651
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Oregon ; OSHA Region 10
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  ALRC - Albany Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  135
• Issue:
  3
• NIOSHTIC Number:
  nn:10006022
• Citation:
  J Electrochem Soc 1988 Mar; 135(3):749-755
• Contact Point Address:
  Je M. Oh, United States Department of the Interior, Bureau of Mines, Albany Research Center, Albany, Oregon 97321
• Federal Fiscal Year:
  1988
• Peer Reviewed:
  True
• Source Full Name:
  Journal of the Electrochemical Society
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:243387ee977e28523157ab06bddfc32084af5ebc91870c692b6bcb403d392cbcd16ed5d0823216651a0e6f47fd9381c5ffa441b7b3d1fcc6d14036ab0ba7eaff
• Download URL:
  https://stacks.cdc.gov/view/cdc/219737/cdc_219737_DS1.pdf
• File Type:
  [PDF - 3.07 MB ]