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Plastic Deformations in Single Crystals of FePd with the L10 Structure

Published online by Cambridge University Press:  27 December 2018

Katsushi Tanaka ,
Wang Chen ,
Kyosuke Kishida ,
Norihiko L. Okamoto  and
Haruyuki Inui
Katsushi Tanaka
Affiliation:
Department of Materials Science and Engineering, Kyoto University Sakyo-ku, Kyoto 606-8501, Japan
Wang Chen
Affiliation:
Department of Materials Science and Engineering, Kyoto University Sakyo-ku, Kyoto 606-8501, Japan
Kyosuke Kishida
Affiliation:
Department of Materials Science and Engineering, Kyoto University Sakyo-ku, Kyoto 606-8501, Japan
Norihiko L. Okamoto
Affiliation:
Department of Materials Science and Engineering, Kyoto University Sakyo-ku, Kyoto 606-8501, Japan
Haruyuki Inui
Affiliation:
Department of Materials Science and Engineering, Kyoto University Sakyo-ku, Kyoto 606-8501, Japan
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Abstract

Compressive deformations of L10-ordered single crystals of FePd have been investigated from room temperature to 873 K. The critical resolved shear stress for superlattice dislocations is hard to determine resulting from buckling that occurs after a small amount of conventional plastic deformation. The CRSS for superlattice dislocations determined from yield stress is significantly larger than that of ordinary dislocations. The CRSS for octahedral glide of ordinary and superlattice dislocations are virtually independent of the temperature, and the positive temperature dependence of the yield stress is not observed for both, ordinary and superlattice dislocations, by the present experiments.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1128: Symposium U – Advanced Intermetallic-Based Alloys for Extreme Environment and Energy Applications , 2008 , 1128-U09-07
Copyright
Copyright © Materials Research Society 2009

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