Surface analysis of chemical stripping titanium alloy oxide films

被引：10

作者：

Liu Jianhua ^{[1
]}

Wu Guolong ^{[1
]}

Li Songmei ^{[1
]}

Yu Mei ^{[1
]}

Yi Junlan ^{[1
]}

Wu Liang ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2012年 / 27卷 / 03期

基金：

中国国家自然科学基金;

关键词：

titanium alloy; oxide films; chemical stripping process; surface analysis; ELECTROCHEMICAL-BEHAVIOR; HYDROGEN ABSORPTION; FLUORIDE SOLUTIONS; FABRICATION; TIO2; SPECTROSCOPY; ELECTRODES; PH;

D O I：

10.1007/s11595-012-0473-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The chemical stripping method of titanium alloy oxide films was studied. An environment friendly solution hydrogen peroxide and sodium hydroxide without hydrofluoric acid or fluoride were used to strip the oxide films. The morphologies of the surface and cross-section of the oxide films before and after the films stripping were characterized by using scanning electron microscopy (SEM). The microstructure and chemical compositions of the oxide films before and after the films stripping were investigated by using Raman spectroscopy (Raman) and X-ray photoelectron spectroscopy (XPS). It was shown that the thickness of the oxide film was in the range of 5-6 mu m. The oxide films were stripped for 2 to 8 min in the solution. Moreover, the effect of the stripping time on the efficiency of the film stripping was investigated, and the optimum stripping time was between 6-8 min. When the stripping solution completely dissolved the whole film, the alpha/beta microstructure of the titanium alloy Ti-10V-2Fe-3Al was partly revealed. The stripping mechanism was discussed in terms of the dissolution of film delamination. The hydrogen peroxide had a significant effect on the dissolution of the titanium alloy anodic oxide film. The feasibility of the dissolution reaction also was evaluated.

引用

页码：399 / 404

页数：6

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