Could face-centered cubic titanium in cold-rolled commercially-pure titanium only be a Ti-hydride?
Could face-centered cubic titanium in cold-rolled commercially-pure titanium only be a Ti-hydride?
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DOI：
10.1016/j.scriptamat.2019.11.010
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发表时间：
2019-07
期刊：
影响因子：
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通讯作者：
Y. Chang;Siyuan Zhang;C. Liebscher;D. Dye;D. Ponge;C. Scheu;G. Dehm;D. Raabe;B. Gault;
中科院分区：
文献类型：
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作者：
Y. Chang;Siyuan Zhang;C. Liebscher;D. Dye;D. Ponge;C. Scheu;G. Dehm;D. Raabe;B. Gault;
在用于工业纯钛的透射电子显微镜的电抛光样品中，有时会有面心立方(FCC)相的报道。本文采用原子探针层析、扫描电子显微镜和低损耗电子能量损失谱相结合的方法研究了该fcc相的晶体结构和化学成分。我们的结果证明，面心立方相实际上是TiHx(x≥ 1)氢化物，而不是钛的新的同素异形体，这与以前的报道一致。对氢化物的形成进行了讨论。
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.