In-situ synchrotron-based high energy X-ray diffraction study of the deformation mechanism of δ-hydrides in a commercially pure titanium

Qing Tan*, Zhiran Yan, Runguang Li, Yang Ren, Yandong Wang, Baptiste Gault, Stoichko Antonov

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We used by in-situ high energy X-ray diffraction to investigate the deformation behavior of Grade 2 commercially pure titanium that was hydrogen charged to form hydrides. The results showed that the peak broadening in the diffraction patterns are due to the high internal and interphase stresses generated within and around hydrides due to the volume expansion induced by the phase transformation. The hydrides exhibit a typical high strength but brittle secondary phase behavior, which undertakes more elastic strain than matrix and is the location where cracks are first generated. Interestingly, the δ-hydrides sustain larger strains than the matrix, especially after the matrix yields. This study on the deformation mechanism of hydrides in pure titanium provides insight into the hydride deformation behavior and hydrogen embrittlement in both titanium and zirconium.
Original languageEnglish
Article number114608
JournalScripta Materialia
Volume213
Number of pages6
ISSN1359-6462
DOIs
Publication statusPublished - 2022

Fingerprint

Dive into the research topics of 'In-situ synchrotron-based high energy X-ray diffraction study of the deformation mechanism of δ-hydrides in a commercially pure titanium'. Together they form a unique fingerprint.

Cite this