zldmЗаводская лаборатория. Диагностика материаловIndustrial laboratory. Diagnostics of materials1028-68612588-0187ООО «Издательство «ТЕСТ-ЗЛ»10.26896/1028-6861-2025-91-5-24-30zldm-2491Research ArticleИССЛЕДОВАНИЕ СТРУКТУРЫ И СВОЙСТВSTRUCTURE AND PROPERTIES INVESTIGATIONАнализ текстур материалов методом компонент в сочетании с другими методами восстановления ФРОThe analysis of textures of materials by the component method in combination with other ODF restoration methodsКоляноваА. С.KolyanovaA. S.

Александра Сергеевна Колянова

119334, Москва, Ленинский пр-т, д. 49

Alexandra S. Kolyanova

49, Leninsky prosp., Moscow, 119334

sasha-kolianova@yandex.ruИнститут металлургии и материаловедения им. А. А. Байкова РАНРоссияA. A. Baikov Institute of Metallurgy and Materials Science, RASRussian Federation2025270520259152430Copyright © Колянова А.С., 20252025Колянова А.С.Kolyanova A.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.zldm.ru/jour/article/view/2491

Кристаллографическая текстура существенно влияет на свойства материалов, поэтому задача ее описания с помощью набора стандартных текстурных компонент актуальна. В работе представлены результаты исследования текстур различных материалов методом компонент с использованием других методов восстановления функции распределения ориентировок (ФРО) для упрощения нахождения начального приближения. Расчеты проводили с применением разработанной программы, основанной на методе компонент для восстановления ФРО из неполных прямых полюсных фигур. Программу использовали для восстановления ФРО модельной текстуры Santa Fe и полученной экспериментально текстуры образца сплава Mg – 4,5 % Nd, подвергнутого горячему прессованию. Для модельной текстуры применяли наборы начальных приближений с одной заведомо ложной компонентой. Для экспериментально полученной текстуры в качестве начального приближения использовали аксиальные компоненты, определенные по экспериментальным данным. В обоих случаях показана хорошая сходимость экспериментальных и расчетных результатов. Предложен и опробован также способ упрощения выбора начального приближения. Получаемые с помощью представленного подхода результаты дают возможность оценивать влияние отдельных компонент на свойства исследуемых материалов, а моделирование свойств позволяет более эффективно использовать текстурные исследования для совершенствования технологии изготовления материалов с заданными свойствами.

Crystallographic texture has a significant impact on the properties of materials, therefor the problem of texture descriptions by means of standard components is topical. The current work presents the results of texture analysis of various materials by via the component method in combination with other methods of orientation distribution function (ODF) restoration for simplification of initial guess determination. The calculations were carried out using a software, developed for the ODF restoration from incomplete direct pole figures by the means of component method. The developed software was used for the ODF restoration of the model Santa Fe texture and experimental texture of Mg – 4.5% Nd alloy sample, subjected to hot pressing. For the model texture, sets of initial approximations with one obviously false component were used. For the experimentally obtained texture, the axial components determined from the experimental data were used as an initial guess. In both cases there is a good agreement between experimental and calculated data. A method for simplifying the determination of initial restoration parameters was also proposed and tested. The results obtained using the presented method make it possible to evaluate the influence of individual components on the properties of the studied materials, and the properties modeling allows more efficient use of texture studies in the development of a technology for creating materials with desired properties.

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The authors declare that there are no conflicts of interest present.