Effect of recrystallization on room temperature tensile properties of an Fe[sub 3]Al-based alloy. [Fe-28Al-5Cr-0. 1Zr-0. 05B]

Journal Article · Sat May 15 00:00:00 EDT 1993 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(93)90449-3· OSTI ID:6788293

McKamey, C G; Pierce, D H ^[1]

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1. Oak Ridge National Lab., TN (United States)

The purpose of the present study was to determine whether recrystallization alone had an effect on the room temperature tensile properties of a Fe[sub 3]Al-based alloy. The best room temperature tensile strength and ductility were attained in specimens which had been heat treated to relieve stresses produced by the fabrication process but that had a minimum number of recrystallized grains. The exact mechanism for this improvement is unclear, but could involve texturing effects or the enhancement of dislocation mobilities. Also the elongated grain structure characteristic of as-rolled material provides a minimum of transverse cleavage planes (as well as a minimum of grain boundaries), and could simply be disrupting the path of atomic hydrogen entering the specimen during tensile stressing.

• OSTI ID: 6788293
• Journal Information: Scripta Metallurgica et Materialia; (United States), Vol. 28:10; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
TENSILE PROPERTIES
CHROMIUM ALLOYS
IRON BASE ALLOYS
AMBIENT TEMPERATURE
BORON ADDITIONS
ELONGATION
EXPERIMENTAL DATA
FRACTURE PROPERTIES
HEAT TREATMENTS
INTERMETALLIC COMPOUNDS
RECRYSTALLIZATION
YIELD STRENGTH
ZIRCONIUM ADDITIONS
ALLOYS
BORON ALLOYS
DATA
INFORMATION
IRON ALLOYS
MECHANICAL PROPERTIES
NUMERICAL DATA
ZIRCONIUM ALLOYS
360103* - Metals & Alloys- Mechanical Properties