Effect of extrusion texture on the compressive behavior of B2 Fe-Al alloys

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Scripta Metallurgica et Materialia

DOI:https://doi.org/10.1016/0956-716X(95)00060-9· OSTI ID:39870

Scheff, S A; Stout, J J; Crimp, M A ^[1]

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1. Michigan State Univ., East Lansing, MI (United States). Dept. of Materials Science and Mechanics

Over the past decade a wide range of intermetallic alloys have been investigated as potential high temperature materials. Many of these studies have used hot extrusion of prealloyed powder to achieve fully dense materials. It is well known that hot extrusion and subsequent recrystallization often result in significant crystallographic texture. Such textures have been reported in hot extruded intermetallics by a number of authors. Unfortunately, this extrusion texture has been ignored when evaluating the mechanical properties of these materials. Often, the relationship between the normal stress axis and extrusion axis is not specified. In other cases, because of size constraints, mechanical tests have been performed with the stress axis parallel with the extrusion axis. The purpose of the present work is to demonstrate the effect of extrusion texture on the apparent mechanical properties of intermetallic alloys. In the present study, three B2 Fe-Al alloys were studied. The first was produced by double hot extrusion of prealloyed Fe-40at%Al elementally blended with 0.05wt%B. This material is referred to as powder extruded. The other materials were produced by hot extrusion of cast billets of Fe-40at%Al Fe-40at%Al+0.1wt%B. These materials are referred to as cast-extruded materials.

• OSTI ID: 39870
• Journal Information: Scripta Metallurgica et Materialia, Journal Name: Scripta Metallurgica et Materialia Journal Issue: 7 Vol. 32; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
BORON ADDITIONS
COMPRESSION STRENGTH
CRYSTAL STRUCTURE
HOT WORKING
INTERMETALLIC COMPOUNDS
IRON BASE ALLOYS
RECRYSTALLIZATION
SAMPLE PREPARATION
TEXTURE
X-RAY DIFFRACTION