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http://earchive.tpu.ru/handle/11683/64876
Название: | Laboratory X-ray Diffraction Complex for In Situ Investigations of Structural Phase Evolution of Materials under Gaseous Atmosphere |
Авторы: | Syrtanov, Maksim Sergeevich Garanin, Georgy Viktorovich Kashkarov, Egor Borisovich Pushilina, Natalia Sergeevna Kudiyarov, Victor Nikolaevich Murashkina, Tatiana Leonidovna |
Ключевые слова: | рентгенография; гидрирование; титановые сплавы; сплавы циркония; электронно-лучевая плавка; in situ XRD; hydrogenation; titanium alloys; zirconium alloy; electron beam melting; thermal expansion coefficient |
Дата публикации: | 2020 |
Издатель: | MDPI AG |
Библиографическое описание: | Laboratory X-ray Diffraction Complex for In Situ Investigations of Structural Phase Evolution of Materials under Gaseous Atmosphere / M. S. Syrtanov, G. V. Garanin, E. B. Kashkarov [et al.] // Metals. — 2020. — Vol. 10, iss. 4. — [447, 15 p.]. |
Аннотация: | In this work, a laboratory X-ray diffraction complex for in situ investigations of structural phase evolution of materials under gaseous atmosphere and elevated temperatures was developed. The approbation of the complex was carried out using a commercially pure titanium (CP-Ti) powder, zirconium (Zr-1Nb) alloy and electron beam melted Ti-6Al-4V alloy. It was established that hydrogenation of the CP-Ti powder occurred at a temperature of 500 °C and a hydrogen pressure of 0.5 atm, accompanied by the formation of metastable ? titanium hydride (?-TiH) phase. The lifetime of the ?-TiH phase was 35–40 min. Decomposition of the ?-TiH occurred after reaching a temperature of 650 °C as a result of the thermally stimulated desorption of hydrogen. The a-Zr ? d-ZrH phase transformation was observed under hydrogenation of the zirconium Zr-1Nb alloy at a temperature of 350 °C and a hydrogen pressure of 0.5 atm. It was revealed that the increase in hydrogenation temperature to 450 °C accelerated this transformation by two times. Hydrogenation of the electron beam melted titanium Ti-6Al-4V alloy at a temperature of 650 °C and hydrogen pressure of 0.5 atm was accompanied by the a ? a + Я ? Я + a2 phase transformations. |
URI: | http://earchive.tpu.ru/handle/11683/64876 |
Располагается в коллекциях: | Репринты научных публикаций |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
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reprint-nw-33306.pdf | 7,31 MB | Adobe PDF | Просмотреть/Открыть |
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