Elevated temperature mechanical properties of a rapidly solidified A1-Fe-V-Si alloy

Journal Article · Tue Sep 01 00:00:00 EDT 1992 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(92)90333-A· OSTI ID:6907077

Mitra, S ^[1]

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1. Naval Postgraduate School, Monterey, CA (United States). Dept. of Mechanical Engineering

Dispersion strengthened Al alloys based on the Al-Fe-V-Si quartenary system have recently been developed using rapid solidification techniques. Rapid solidification techniques which resulted in the above mentioned alloys have also been used to manufacture another commercial alloy, FVS 1212, with 37 volume % of dispersoid. The alloy has shown excellent resistance to coarsening at high temperatures and to creep deformation. Elevated temperature exposure of FVS 1212, for times up to 100 hours, resulted in a significant loss in room temperature mechanical properties only beyond 500[degrees]C while 1000 hours at 425[degrees]C did not result in any degradation of mechanical but no detailed study of the tensile behavior of FVS 1212 at slow strain rates and elevated temperatures has been reported to date. This paper reports that the present study was undertaken to investigate the tensile behavior of FVS 1212 from room temperature to 400[degrees]C at strain rates of 6.56 [times] 10[sup [minus]]5/sec and 6.56 [times] 10[sup [minus]6]/sec. The study focussed on dynamic strain aging effects and strain hardening behavior, while the effect of strain rate on the flow behavior at elevated temperatures was also evaluated.

• OSTI ID: 6907077
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 27:5; ISSN SCRMEX; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
AGING
ALLOYS
ALUMINIUM ALLOYS
CREEP
DEFORMATION
HARDENING
IRON ALLOYS
MECHANICAL PROPERTIES
PHASE TRANSFORMATIONS
SILICON ALLOYS
SOLIDIFICATION
STRAIN AGING
STRAIN HARDENING
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TENSILE PROPERTIES
TIME DEPENDENCE
VANADIUM ALLOYS
VARIATIONS
YIELD STRENGTH