多孔的阳极的氧化物电影与不同阳极化的时间在铵酒石酸盐答案在钛合金 Ti-10V-2Fe-3Al 上 galvanostatically 被制作。扫描电子显微镜学(SEM ) 和地排放扫描电子显微镜学(FE-SEM ) 被用来调查阳极的氧化物电影的形态学进化。在故障电压上面,氧与鼓形态学的出现被产生,这被显示出。这些鼓成长并且渗出,它产出压缩压力。随后, microcracks 被产生。与连续阳极化,多孔的氧化物在 microcracks 形成。那些氧化物成长并且与对方连接,最后代替 microcrack 形态学。在 1 800 s 形成的阳极的氧化物电影的深度侧面被钻电子光谱学(AES ) 检验。这部电影根据元素的臼齿的部分被划分成三层,这被发现。外部层被碳合并,它可以来自电解质答案。外部层的厚度是约 0.20.3 m。在中间的层的元素的臼齿的部分是非常地稳定的,当那些与劈啪作响的深度显著地在内部层变化时。中间的层和内部层的厚度分别地是 2 m 和 1.01.5 m。而且,在中立酒石酸盐答案的多孔的阳极的氧化物电影的生长机制被建议。
Porous anodic oxide films were fabricated galvanostatically on titanium alloy Ti-10V-2Fe-3Al in ammonium tartrate solution with different anodizing time. Scanning electron microscopy (SEM) and field emission scanning electron microscopy (FE-SEM) were used to investigate the morphology evolution of the anodic oxide film, It is shown that above the breakdown voltage, oxygen is generated with the occurrence of drums morphology. These drums grow and extrude, which yields the compression stress. Subsequently, microcracks are generated. With continuous anodizing, porous oxides form at the microcracks. Those oxides grow and connect to each other, finally replace the microcrack morphology. The depth profile of the anodic oxide film formed at 1 800 s was examined by Auger electron spectroscopy (AES). It is found that the film is divided into three layers according to the molar fractions of elements. The outer layer is incorporated by carbon, which may come from electrolyte solution. The thickness of the outer layer is approximately 0.2-0.3 μm. The molar fractions of elements in the intermediate layer are extraordinarily stable, while those in the inner layer vary significantly with sputtering depth. The thicknesses of the intermediate layer and the inner layer are 2 μm and 1.0- 1.5 μm, respectively. Moreover, the growth mechanism of porous anodic oxide films in neutral tartrate solution was proposed.