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Home ESOMAT 2009 - 8th European Symposium on Martensitic Transformations Article
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Issue ESOMAT 2009
2009
Article Number 02025
Number of page(s) 5
Section Principles, Simulations, Materials: Background
DOI http://dx.doi.org/10.1051/esomat/200902025
Published online 01 September 2009

ESOMAT 2009, 02025 (2009)
DOI: 10.1051/esomat/200902025

A New Diffraction Approach To Crystal Structure Determination of Nano-twined Martensites

L. Olikhovska, A. Ustinov, N. Glavatska and I. Glavatskyy

National Academy of Sciences of Ukraine, Institute for Metal Physics, 03142 Kiev, Ukraine

olla@imp.kiev.ua

Published online: 1 September 2009

Abstract
The intensity diffracted by crystals containing twin boundaries of the system {110}, $\langle 1 \bar{1} 0 \rangle$ were calculated in the reciprocal space assuming a short-range order in the twin-boundary distribution. The calculated intensity distributions have been analyzed to find the effect on the diffraction pattern of such parameters as (i) ratio b/a (c/a) between the crystal lattice constants, (ii) density of the twin boundaries, (iii) ratio between thicknesses of the twin-related lamellae, and (iv) crystallographic direction along which the intensity distribution is simulated. It is found that each of these parameters affects the diffraction-peak profiles and positions including the diffraction peaks of the basic structure. Therefore, the problem of the diffraction pattern identification for a twin-modulated crystal should be approached only by a combined consideration of the diffraction features.

Note to the reader:
On page 02025-p2 several mistakes have been corrected on October 19, 2009.



© Owned by the authors, published by EDP Sciences 2009


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