Effects of boron and grain size on the strain-rate sensitivity of Fe-45Al

Journal Article · Fri Apr 01 04:00:00 EST 1994 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(94)90405-7· OSTI ID:5227899

Baker, I; Klein, O; Nelson, C ^[1]; George, E P ^[2]

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1. Dartmouth Coll., Hanover, NH (United States). Thayer School of Engineering
2. Oak Ridge National Lab., TN (United States)

Focusing on the effect of grain size on room temperature fracture: Gaydosh et al. showed a steady increase in the elongation of furnace-cooled Fe-40Al in air from [approximately]1% for 220 [mu]m grains to [approximately]3% for 15 [mu]m grains, whilst the largest elongation for Fe-40Al tested in air (7%) was reported by Strothers and Vedula (12) for Y[sub 2]O[sub 3]-doped material with a [approximately]5 [mu]n grain size. A small grain size influence on ductility has also been noted for both boron-doped and unalloyed Fe-45Al tested in air. The purpose of the present paper is to report the effect of both boron and grain size on the strain rate dependence of the fracture of Fe-45Al in air.

• DOE Contract Number: FG02-87ER45311; AC05-76OR00033; AC05-84OR21400
• OSTI ID: 5227899
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 30:7; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
BORON
BORON ADDITIONS
BORON ALLOYS
ELEMENTS
FRACTURE MECHANICS
FRACTURE PROPERTIES
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MECHANICS
METALLURGICAL EFFECTS
SEMIMETALS