Russian Journal of Biological Physics and Chemisrty Russian Journal of Biological Physics and Chemisrty АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ 2499-9962 54828 10.29039/rusjbpc.2022.0491 МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ MEDICAL BIOPHYSICS AND BIOPHYSICAL CHEMISTRY МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ ELASTIC PROPERTIES OF CRYSTALS OF BIOCOMPATIBLE TINI-BASED ALLOYS WITH SHAPE MEMORY Упругие свойства кристаллов биосовместимых сплавов на основе TiNi с памятью формы Муслов С. А. Muslov S. A. muslov@mail.ru Сухочев П. Ю. Sukhochev P. Yu. Московский государственный медико-стоматологический университет им. А.И. Евдокимова Москва Россия A.I. Yevdokimov Moscow State University of Medicine and Dentistry Moscow Russian Federation Московский государственный университет им. М.В. Ломоносова Москва Россия Lomonosov Moscow State University Moscow Russian Federation 25 03 2022 25 03 2022 7 1 105 112 20 03 2022 20 03 2022 https://rusjbpc.ru/en/nauka/article/54828/view

Представлены собственные и литературные данные по характеристикам упругих свойств кристаллов биосовместимых сплавов на основе никелида титана (нитинола) TiNi с памятью формы, получивших широкое применение в науке, технике и медицине. Оценивали упругие постоянные cij, коэффициенты податливости sij, коэффициенты Пуассона μmin, μmax, <μ> и упругой анизотропии A, полученные опытным и расчетным путем. Численные значения исследованных параметров детально проанализированы с точки зрения описательной статистики. Для визуализации различий упругих характеристик применены диаграммы “box and whiskers” и диаграмма с областями. Знание упругих постоянных кристаллической решетки TiNi и сплавов на его основе позволило рассчитать значения макроскопических упругих модулей E и G, коэффициента Пуассона μ и их ориентационную зависимость. На основании анализа данных сделан вывод о том, что низкий уровень упругих свойств сплавов на основе TiNi (нитинола) может быть использован, например, при разработке бионических протезов для медицины.

The authors present their own and literature data on the characteristics of elastic properties of crystals of biocompatible alloys based on titanium nickelide (nitinol) TiNi with shape memory, which have been widely used in science, technology and medicine. Elastic constants cij, malleability coefficients sij, Poisson coefficients μmin, μmax, <µ> and elastic anisotropy A, obtained experimentally and computationally, were evaluated.The numerical values of the studied parameters are analyzed in detail from the point of view of descriptive statistics. To visualize the differences in elastic characteristics, “box and whiskers” diagrams and a diagram with areas are used. Knowledge of the elastic constants of the TiNi crystal lattice and alloys based on it made it possible to calculate the values of macroscopic elastic modules E and G, the Poisson's ratio μ and their orientation dependence. Based on the data analysis, it is concluded that the low level of elastic properties of TiNi (nitinol) based alloys can be used, for example, in the development of bionic prostheses for medicine.

 биосовместимые сверхэластичные сплавы с памятью формы TiNi упругие постоянные коэффициент Пуассона ауксетики biocompatible superelastic shape memory alloys TiNi elastic constants Poisson's ratio auxetics

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