Mechanical properties of iron-aluminum alloys

Alexander, D J; Sikka, V K

Title: Mechanical properties of iron-aluminum alloys

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Abstract

Tensile and impact tests have been conducted on specimens for a series of five heats of iron-aluminum alloys. These results have been compared to data for the iron aluminide alloy FA-129. The first of the new alloys was a simple ternary alloy with iron, aluminum, and chromium contents that matched the FA-129 composition. The second was similar but with additions of zirconium and carbon. Three heats were produced with reduced aluminum contents so that a disordered body-centered cubic structure would be present. Additions of titanium or yttrium were included. The ductile-to brittle transition temperatures of all of the Fe{sub 3}Al alloys were similar, but the simple ternary alloy had a much higher upper-shelf energy levels than the Fe{sub 3}Al type alloys. The reduced aluminum alloy with the yttrium addition showed excellent tensile properties, with a room temperature total elongation of over 40%, and a very high upper-shelf energy level. Despite the high tensile ductility at room temperature, the transition temperature of the yttrium-containing alloy was still about 150{degrees}C, compared to approximately 300{degrees}C for FA-129.

Authors:

Alexander, D J; Sikka, V K ^[1]

Oak Ridge National Lab., TN (United States)

Publication Date:: Thu Jul 01 00:00:00 EDT 1993

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 140129

Report Number(s):: ORNL/FMP-93/1; CONF-9305135-
ON: DE94001091; TRN: 93:003927-0023

DOE Contract Number:: AC05-84OR21400

Resource Type:: Conference

Resource Relation:: Conference: 7. annual conference on fossil energy materials, Oak Ridge, TN (United States), 11-13 May 1993; Other Information: PBD: Jul 1993; Related Information: Is Part Of Proceedings of the Seventh Annual Conference on Fossil Energy Materials; Fossil Energy AR and TD Materials Program; Cole, N.C.; Judkins, R.R. [comps.]; PB: 402 p.

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; IRON BASE ALLOYS; MECHANICAL PROPERTIES; ALUMINIUM ALLOYS; INTERMETALLIC COMPOUNDS; CHEMICAL COMPOSITION; MICROSTRUCTURE; IMPACT TESTS; IMPACT STRENGTH; ZIRCONIUM ADDITIONS; CARBON ADDITIONS; TITANIUM ADDITIONS; YTTRIUM ADDITIONS

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                    Alexander, D J, and Sikka, V K. Mechanical properties of iron-aluminum alloys.  United States: N. p., 1993. 
        Web.

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                    Alexander, D J, & Sikka, V K. Mechanical properties of iron-aluminum alloys.  United States.

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                    Alexander, D J, and Sikka, V K. 1993.  
        "Mechanical properties of iron-aluminum alloys".  United States.

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@article{osti_140129,

  title        = {Mechanical properties of iron-aluminum alloys},

  author       = {Alexander, D J and Sikka, V K},

  abstractNote = {Tensile and impact tests have been conducted on specimens for a series of five heats of iron-aluminum alloys. These results have been compared to data for the iron aluminide alloy FA-129. The first of the new alloys was a simple ternary alloy with iron, aluminum, and chromium contents that matched the FA-129 composition. The second was similar but with additions of zirconium and carbon. Three heats were produced with reduced aluminum contents so that a disordered body-centered cubic structure would be present. Additions of titanium or yttrium were included. The ductile-to brittle transition temperatures of all of the Fe{sub 3}Al alloys were similar, but the simple ternary alloy had a much higher upper-shelf energy levels than the Fe{sub 3}Al type alloys. The reduced aluminum alloy with the yttrium addition showed excellent tensile properties, with a room temperature total elongation of over 40%, and a very high upper-shelf energy level. Despite the high tensile ductility at room temperature, the transition temperature of the yttrium-containing alloy was still about 150{degrees}C, compared to approximately 300{degrees}C for FA-129.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/140129},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Jul 01 00:00:00 EDT 1993},

  month        = {Thu Jul 01 00:00:00 EDT 1993}

}

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