ODS Iron Aluminides Metadata

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Title

  • Main Title ODS Iron Aluminides

Creator

  • Author: Wright, I. G.
    Creator Type: Personal
  • Author: McKamey, C. G.
    Creator Type: Personal
  • Author: Pint, B. A.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)

Publisher

  • Name: Oak Ridge National Laboratory
    Place of Publication: Tennessee
    Additional Info: Oak Ridge National Lab., TN (United States)

Date

  • Creation: 1995-07-01

Language

  • English

Description

  • Content Description: Since oxide dispersion-strengthened (ODS) FeCrAl-based alloys have sufficient creep strength and good oxidation resistance at the very high temperatures of interest for the primary heat exchanger in advanced, closed-cycle gas turbine systems, they constitute viable alternative candidates to ceramics. A major life-limiting factor of these alloys is the ability to continue to form a protective scale of aluminum oxide, a factor proportional to the total amount of aluminum contained in the alloy. Fe{sub 3}Al has oxidation resistance comparable to that of the FeCrAl-based alloys, and significantly superior sulfidation resistance. Also, because of its larger reservoir of aluminum, Fe{sub 3}Al would be expected to exhibit longer lifetimes at the temperatures of interest. Since the strengthening effects of ODS processing are expected to confer similar high-temperature creep properties to those found for the FeCrAl-based alloys, ODS-Fe{sub 3}Al is considered to have excellent potential for the very high-temperature heat exchanger application. The program effort on ODS Fe{sub 3}Al includes examination of the properties of available ODS-FeCrAl alloys; development of mechanical alloying parameters for ODS-Fe{sub 3}Al; determination of the effects of a dispersion of reactive element oxides on the high-temperature oxidation behavior of Fe{sub 3}Al; and evaluation of methods for joining them.
  • Physical Description: 10 p.

Subject

  • Keyword: Mechanical Properties
  • Keyword: Oxidation
  • Keyword: Gas Turbine Power Plants
  • Keyword: Metallurgical Effects
  • Keyword: Experimental Data
  • Keyword: Corrosion Resistance
  • Keyword: Milling
  • STI Subject Categories: 36 Materials Science
  • Keyword: Service Life
  • Keyword: Intermetallic Compounds
  • Keyword: Aluminium Alloys
  • STI Subject Categories: 20 Fossil-Fueled Power Plants
  • Keyword: Chromium Alloys
  • Keyword: Heat Resistant Materials
  • Keyword: Closed-Cycle Systems
  • Keyword: Heat Exchangers
  • Keyword: Iron Alloys
  • Keyword: Yttrium Oxides

Source

  • Conference: 9. annual conference on fossil energy materials, Oak Ridge, TN (United States), 16-18 May 1995

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE95014253
  • Report No.: CONF-9505204--12
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/106569
  • Office of Scientific & Technical Information Report Number: 106569
  • Archival Resource Key: ark:/67531/metadc621577

Note

  • Display Note: OSTI as DE95014253
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