Restoration of Orientation Distribution Function Using Texture Components with Radial Normal Distributions
- Авторы: Ivanova T.M.1, Serebryanyi V.N.2
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Учреждения:
- National Research Nuclear University MEPhI
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
- Выпуск: Том 54, № 15 (2018)
- Страницы: 1477-1482
- Раздел: The Study of Structure and Properties Physical Methods for Study and Control
- URL: https://journals.rcsi.science/0020-1685/article/view/158603
- DOI: https://doi.org/10.1134/S0020168518150062
- ID: 158603
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Аннотация
The methods for restoration of the orientation distribution function (ODF) from experimental pole figures have been compared for materials possessing a low symmetry of specimen (by example of the median section of the hot-pressed band from Mg–4.5% Nd magnesium alloy), namely, the method of texture components using radial normal distributions on SO(3) with different spreading and the method of superposition of a large number of normal distributions with equivalent small spreading. Both approaches have demonstrated similar ODFs. In this case, the former method, which is less sensitive to measurement errors of pole figures, is based on nonlinear optimization with a complex choice of initial approximations of the parameters of the model. The latter approach is more sensitive and easier to use.
Об авторах
T. Ivanova
National Research Nuclear University MEPhI
Автор, ответственный за переписку.
Email: ivatatiana@gmail.com
Россия, Moscow
V. Serebryanyi
Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: vns@imet.ac.ru
Россия, Moscow, 119334
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