Could face-centered cubic titanium in cold-rolled commercially-pure titanium only be a Ti-hydride?

2019/07/02 by Yanhong Chang, Siyuan Zhang, Chang, Yanhong +17
Engineering · Materials Science · #Advanced Materials Characterization Techniques #FOS: Physical sciences #Hydrogen embrittlement and corrosion behaviors in metals #Ion-surface interactions and analysis #Materials Science (cond-mat.mtrl-sci)

paper · pdf · doi:10.48550/arxiv.1907.01583

openalex publication_date 2019/07/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A face-centered cubic (FCC) phase in electro-polished specimens for transmission electron microscopy of commercially pure titanium has sometimes been reported. Here, a combination of atom-probe tomography, scanning transmission electron microscopy and low-loss electron energy loss spectroscopy is employed to study both the crystal structural and chemical composition of this FCC phase. Our results prove that the FCC phase is actually a TiHx (x>1) hydride, and not a new allotrope of Ti, in agreement with previous reports. The formation of the hydride is discussed.

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