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Grain Boundary Structure and Structure-Behavior Relationships in HCP Metals

Published online by Cambridge University Press:  15 February 2011

A. H. King
A. H. King*
Affiliation:
Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY, 11794–2275
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Abstract

We present calculations of dislocation spacing for grain boundaries in zinc, and show that the spacings may be large enough to be resolved in conventional transmission electron microscopy even at extreme deviations from ideal coincidence misorientations. This effect is a result of the need for the dislocation arrays to accommodate slight differences between the ideal and actual axial ratios in addition to the difference between the ideal and actual misorientations. Recent observations of sliding behavior as a function of misorientation may also be rationalized within the framework of our structure calculations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 229: Symposium Q – Structure/Property Relationships for Metal/Metal Interfaces , 1991 , 227
Copyright
Copyright © Materials Research Society 1991

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