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arXiv · 1907.01583

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

Yanhong Chang·Siyuan Zhang·Christian H. Liebscher·David Dye·Dirk Ponge·Christina Scheu·Gerhard Dehm·Dierk Raabe·Baptiste Gault·Wenjun Lu
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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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Yanhong Chang, Siyuan Zhang, Christian H. Liebscher, David Dye, Dirk Ponge, Christina Scheu, Gerhard Dehm, Dierk Raabe, Baptiste Gault, Wenjun Lu. 2019-07-02. Could face-centered cubic titanium in cold-rolled commercially-pure titanium only be a Ti-hydride?. https://arxiv.org/abs/1907.01583

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