首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Characterization of oxide layers on Ti-2Al-2.5Zr and Ti-4Al-2V alloys oxidized at 300 deg C in a neutral water steam
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Characterization of oxide layers on Ti-2Al-2.5Zr and Ti-4Al-2V alloys oxidized at 300 deg C in a neutral water steam

机译:在中性水蒸气中于300℃氧化的Ti-2Al-2.5Zr和Ti-4Al-2V合金上的氧化物层的表征

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摘要

Two new a-titanium alloys, Ti-2Al-2.5Zr and T1-4A1-2V, have been oxidized at 300 deg C in a neutral water steam at a pressure of 8.5 MPa, and the oxidation behaviors were investigated using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), in situ auger electron spectroscopy (AES), Raman spectroscopy and cross-sectional transmission electron microscopy (TEM) techniques. The results showed that the oxide layer was mainly composed of anatase-TiO_2, and the thickness of the oxide scales increased with oxidation time. TiO was found with increasing depth, and the segregation of Al at the surface was also found during oxidation process.
机译:在中性水蒸气中,在8.5 MPa的压力下于300℃下氧化了两种新的a钛合金Ti-2Al-2.5Zr和T1-4A1-2V,并使用X射线衍射研究了其氧化行为。 (XRD),X射线光电子能谱(XPS),原位俄歇电子能谱(AES),拉曼能谱和横截面透射电子显微镜(TEM)技术。结果表明,氧化层主要由锐钛矿型TiO_2组成,氧化皮厚度随氧化时间的增加而增加。发现TiO的深度增加,并且在氧化过程中还发现Al在表面的偏析。

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