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Deformation Microstructures of C15 Cr2Nb Laves Phase Intermetallic Compounds

Published online by Cambridge University Press:  22 February 2011

M. Yoshida ,
T. Takasugi  and
S. Hanada
M. Yoshida
Affiliation:
Miyagi National College of Technology, Natori, Miyagi Prefecture, 981-12, Japan
T. Takasugi
Affiliation:
Institute for Materials Research, Tohoku University, Katahira 2–1–1, Aoba-ku, Sendai, 98077, Japan
S. Hanada
Affiliation:
Institute for Materials Research, Tohoku University, Katahira 2–1–1, Aoba-ku, Sendai, 98077, Japan
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Abstract

The Cr2Nb intermetallic compounds with C15 Laves structure, which are considered to be attractive candidate as extremely high temperature structural materials, are deformed by compression test. The Cr2Nb intermetallic compounds are deformable at temperatures above 1473 K. The Burgers vector of dislocations activated at temperatures above BDTT are determined to be 1/2<011= which is split into a pair of 1/6<112= (i.e. the Shockley partials) connected by the stacking fault (SF). Also, the morphological feature of the activated dislocations and the SF energy are evaluated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 1395
Copyright
Copyright © Materials Research Society 1995

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