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Title: Preparation and fabrication of iron aluminides

Abstract

The Fe{sub 3}AL-based iron aluminides are under development at Oak Ridge National Laboratory (ORNL) for a range of fossil energy applications. The room-temperature ductility, which was the major drawback for their use, has been increased from 8% to a more usable range of 15 to 20%. The commercial application of these alloys requires information regarding their melting and fabrication. This paper presents the recent data regarding alloy compositions, melting and fabrication, and properties. The Fe{sup 3}AL alloy (FA-129) was vacuum-induction melted in a MgO crucible, with a slight pickup of magnesium. This magnesium pickup was not detrimental to the processing of the ingot. The magnesium content has been subsequently reduced by either vacuum-arc remelting or electroslag remelting. The ingots were hot worked without any problems at ORNL, Special Metals Corporation (New Hartford, New York), and Precision Rolled Products (Reno, Nevada). Tensile and creep properties of the ingots in this study were similar to those observed in previous heats. 10 refs., 6 figs., 1 tab.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (USA)
OSTI Identifier:
5638250
Report Number(s):
CONF-9105184-8
ON: DE91014547
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Conference
Resource Relation:
Conference: 5. annual conference on fossil energy materials, Oak Ridge, TN (USA), 13-16 May 1991
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 01 COAL, LIGNITE, AND PEAT; ALUMINIUM ALLOYS; FABRICATION; IRON BASE ALLOYS; COMMERCIALIZATION; CREEP; DUCTILITY; FOSSIL FUELS; INTERMETALLIC COMPOUNDS; MECHANICAL PROPERTIES; MELTING; ORNL; PROCESSING; TENSILE PROPERTIES; ALLOYS; ENERGY SOURCES; FUELS; IRON ALLOYS; NATIONAL ORGANIZATIONS; PHASE TRANSFORMATIONS; US AEC; US DOE; US ERDA; US ORGANIZATIONS; 360101* - Metals & Alloys- Preparation & Fabrication; 360103 - Metals & Alloys- Mechanical Properties; 360105 - Metals & Alloys- Corrosion & Erosion; 010400 - Coal, Lignite, & Peat- Processing

Citation Formats

Sikka, V K, Baldwin, R H, Blakely, K S, Hatfield, E C, Howell, C R, and McKamey, C G. Preparation and fabrication of iron aluminides. United States: N. p., 1991. Web.
Sikka, V K, Baldwin, R H, Blakely, K S, Hatfield, E C, Howell, C R, & McKamey, C G. Preparation and fabrication of iron aluminides. United States.
Sikka, V K, Baldwin, R H, Blakely, K S, Hatfield, E C, Howell, C R, and McKamey, C G. 1991. "Preparation and fabrication of iron aluminides". United States.
@article{osti_5638250,
title = {Preparation and fabrication of iron aluminides},
author = {Sikka, V K and Baldwin, R H and Blakely, K S and Hatfield, E C and Howell, C R and McKamey, C G},
abstractNote = {The Fe{sub 3}AL-based iron aluminides are under development at Oak Ridge National Laboratory (ORNL) for a range of fossil energy applications. The room-temperature ductility, which was the major drawback for their use, has been increased from 8% to a more usable range of 15 to 20%. The commercial application of these alloys requires information regarding their melting and fabrication. This paper presents the recent data regarding alloy compositions, melting and fabrication, and properties. The Fe{sup 3}AL alloy (FA-129) was vacuum-induction melted in a MgO crucible, with a slight pickup of magnesium. This magnesium pickup was not detrimental to the processing of the ingot. The magnesium content has been subsequently reduced by either vacuum-arc remelting or electroslag remelting. The ingots were hot worked without any problems at ORNL, Special Metals Corporation (New Hartford, New York), and Precision Rolled Products (Reno, Nevada). Tensile and creep properties of the ingots in this study were similar to those observed in previous heats. 10 refs., 6 figs., 1 tab.},
doi = {},
url = {https://www.osti.gov/biblio/5638250}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}

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