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Surface Analysis of Chemical Stripping Titanium Alloy Oxide Films
  • 期刊名称:Journal of Wuhanuniversity of Technology
  • 时间:2012.6.15
  • 页码:399-404
  • 分类:TQ075.1[化学工程] TG174.451[金属学及工艺—金属表面处理;金属学及工艺—金属学]
  • 作者机构:[1]School of Materials Science and Engineering, Beihang University
  • 相关基金:Funded by the National Natural Science Foundation of China(No. 51171011)
  • 相关项目:超高强钢应力腐蚀裂纹萌生与演变机制研究
中文摘要:

钛合金氧化物电影的化学脱衣方法被学习。环境没有氟氢的酸或氟化物的友好溶液氢过氧化物和钠氢氧化物被用来剥去氧化物电影。表面的形态学和在脱衣的电影前后的氧化物电影的剖面图被使用扫描电子显微镜学(SEM ) 描绘。微观结构和在脱衣的电影前后的氧化物电影的化学作文被使用拉曼光谱学(拉曼) 和 X 光检查光电子光谱学(XPS ) 调查。氧化物电影的厚度在 56 m 的范围,这被显示出。氧化物电影在答案为 2 ~ 8 min 被剥去。而且,脱衣被调查的这部电影的效率上的脱衣的时间的效果,和剥去时间的最佳在 68 min 之间。当脱衣的答案完全溶解了整个电影时,钛合金 Ti-10V-2Fe-3Al 的 / 微观结构部分被揭示。脱衣的机制以电影分层的溶解被讨论。氢过氧化物在钛合金的溶解上有重要效果阳极的氧化物电影。溶解反应的可行性也被评估。

英文摘要:

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 μm. 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 α/β 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.

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