X-ray Analysis of the Structure-phase States of the Tantalum Coating on NiTi Substrate Treated by Electron Beams

X-ray Analysis of the Structure-phase States of the Tantalum Coating on NiTi Substrate Treated by Electron Beams

Bibliographic Details
Parent link:Materials Today: Proceedings: Scientific Journal
Vol. 2, iss. 3 : ICOMAT-2014 : International Conference on Martensitic Transformations.— 2015.— [P. S901–S904]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра общей физики (ОФ)
Other Authors: Ostapenko M. G. Marina Gennadievna, Meysner L. L. Lyudmila Leonidovna, Zakharova M. A. Margarita Anatoljevna, Gudimova E. Y. Ekaterina Yurjevna
Summary:Title screen
The evolution of the structural phase states in the Tantalum coatings formed on the NiTi substrate and their change before and after low energy high current pulsed electron beam treatment has been investigated by using X-ray diffraction technique. It was found that in the Tantalum coating reflections of cubic a-Ta and Я-Ta tetragonal phases, with a predominance of a-Ta phase (~ 65 vol.%) were observed. The layer between the coating and the NiTi substrate composed of the phase with a bcc structure based on Ta-O with an oxygen concentration of CO ˜ 13 atm.%. After LEHCPEB at E = 15 J/cm2 of coated samples in addition to the B2, a-Ta and -Ta phases the martensite phase B19’ was detected in the surface layer. It was revealed that after the treatment of samples a uniform layer consisting mainly of Tantalum with no clearly defined boundaries between the coating and the NiTi substrate was formed on the surface.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2015
Subjects:
электронный ресурс
труды учёных ТПУ
никель
титан
танталовые сплавы
сильноточные электронные пучки
структурно-фазовые состояния
Online Access:http://dx.doi.org/10.1016/j.matpr.2015.07.427
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=647795

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