Hydrogenation-induced microstructure changes in titanium

Результат исследований: Материалы для журналаСтатьярецензирование

24 Цитирования (Scopus)

Аннотация

Abstract Microstructure changes of commercially pure titanium in a wide range of hydrogen concentrations from 0.8 at.% to 32.0 at.% were studied by means of positron lifetime spectroscopy and Doppler broadening spectroscopy. We have obtained new experimental data on the evolution of positron annihilation parameters τf, τd and their corresponding intensities If, Id, as well as relative changes of parameters S/S0 and W/W0 depending on the hydrogen concentration in commercially pure titanium after gas-phase hydrogenation at 873 K. Results suggest that the hydrogenation of Ti samples up to concentrations of 1.31-2.27 at.% and subsequent cooling to a room temperature leads to the formation of vacancies and vacancy clusters. Further increase of the hydrogen concentration up to 32.0 at.% leads to the interaction of hydrogen with these defects and the formation of "cluster-hydrogen" and "vacancy-hydrogen" complexes.

Язык оригиналаАнглийский
Номер статьи33119
Страницы (с-по)S193-S195
ЖурналJournal of Alloys and Compounds
Том645
Номер выпускаS1
DOI
СостояниеОпубликовано - 11 авг 2015

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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