skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: STUDY OF FACTORS INFLUENCING DUCTILITY OF IRON-ALUMINUM ALLOYS

Abstract

The effects on variations of Al content, heat treatment, and basic slip mechanism upon the room-temperature ductility of Fe-Al alloys of are being determined. (W.L.H.)

Authors:
;
Publication Date:
Research Org.:
Denver. Univ. Denver Research Inst.
Sponsoring Org.:
USDOE
OSTI Identifier:
4240865
Report Number(s):
AECU-4252
NSA Number:
NSA-13-018088
DOE Contract Number:
AT(11-1)-742
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
METALLURGY AND CERAMICS; ALUMINUM; ALUMINUM ALLOYS; DEFECTS; DUCTILITY; HEAT TREATMENTS; IRON ALLOYS; MECHANICS; QUANTITY RATIO; SLIP

Citation Formats

Perkins, F.C., and Nachman, J.F.. STUDY OF FACTORS INFLUENCING DUCTILITY OF IRON-ALUMINUM ALLOYS. United States: N. p., 1959. Web. doi:10.2172/4240865.
Copy to clipboard
Perkins, F.C., & Nachman, J.F.. STUDY OF FACTORS INFLUENCING DUCTILITY OF IRON-ALUMINUM ALLOYS. United States. doi:10.2172/4240865.
Copy to clipboard
Perkins, F.C., and Nachman, J.F.. Wed . "STUDY OF FACTORS INFLUENCING DUCTILITY OF IRON-ALUMINUM ALLOYS". United States. doi:10.2172/4240865. https://www.osti.gov/servlets/purl/4240865.
Copy to clipboard
@article{osti_4240865,
title = {STUDY OF FACTORS INFLUENCING DUCTILITY OF IRON-ALUMINUM ALLOYS},
author = {Perkins, F.C. and Nachman, J.F.},
abstractNote = {The effects on variations of Al content, heat treatment, and basic slip mechanism upon the room-temperature ductility of Fe-Al alloys of are being determined. (W.L.H.)},
doi = {10.2172/4240865},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 01 00:00:00 EDT 1959},
month = {Wed Jul 01 00:00:00 EDT 1959}
}
Copy to clipboard
Technical Report:
View Technical Report (0.48 MB)
DOI:  10.2172/4240865
Save / Share:
Export Metadata
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.

  • ;
    Progress is reported on the program to determine the effect of variations of Al content, heat treatment, and basic slip mechanism upon the room- temperature ductility of Fe-Al alloys. (W.L.H.)

  • ;
    The effect of variation of Al content, heat treatment, and basic slip mechanism upon the room-temperature ductility of Fe-Al alloys is being studied. (W.L.H.)

  • ;
    Studies are being made on the effects of variation of aluminum content, heat treatment, surface preparation, and other metallurgical factors on the room temperature ductility of Al-- Fe alloys. The variation of Fe/sub 3/Al order as a function of temperature for 13.9 Alfenol was redetermined under constant instrumental conditions. The variation of the electrical resistivity of the three alloys under consideration with temperature on slow cooling is illustrated. An anomaly in the disordering process near the Fe/sub 3/Al -- FeAl transformation temperature was manifested in the stoichiometric Fe/sub 3/Al alloy. Above a temperature of 490 deg C there was amore » rapid decrease in the integrated intensity of the (210) FeAl superlattice reflection. The best ductilities obtained corresponded to heat treatments involving slow cooling to produce a high degree of Fe/sub 3/Al order and subsequent annealing of the ordered material for short periods of time near the Fe/sub 3/Al -- FeAl transformation temperature. (M.C.G.)« less

  • The objective of the program is to determine the effect of variations of aluminum content, heat treatment, surface preparation, and other metallurgical factors upon the room-temperature ductility of Fe-- Al alloys. As a continuation of the metallographic deformation studies, two coarse-grained tensile specimens of 13.9-Alfenol were heat treated, electropolished, and pulled to fracture. (W.L.H.)

  • ;
    A study was made of the long-range order parameter for the Fe/sub 3/Al ordered phase in the binary 13.9- and 16-Alfenol alloys. A single crystal of each composition was grown by the strain-anneal technique and slow cooled from 700 to 100 deg C at the rate of 5 deg /hr. The integrated intensities of three superlattice reflections for each crystal were determined by x-ray diffraction studies. Subsequently, the perfectly ordered crystals were isothermally annealed to produce an equilibrium degree of order corresponding to a constant resistivity conditlon and then rapidly quenched in an iced brine solution. The integrated intensities ofmore » the superlattice reflections were then determined as before. By repeating the procedure, a curve of the equilibrium value of long-range order parameter as a function of temperatare was obtained for each alloy. (M.C.G.)« less