Characteristics and Corrosion Behavior of Pure Titanium Subjected to Surface Mechanical Attrition
Characteristics and Corrosion Behavior of Pure Titanium Subjected to Surface Mechanical Attrition
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DOI：
10.1007/s11837-017-2511-7
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发表时间：
2017-08
期刊：
影响因子：
2.6
通讯作者：
Tian Fu;Xiao Wang;Jianxiong Liu;Li Li-Li;Xiaohua Yu;Z. Zhan
中科院分区：
文献类型：
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作者：
Tian Fu;Xiao Wang;Jianxiong Liu;Li Li-Li;Xiaohua Yu;Z. Zhan
在3.5wt.%的钝化膜中，在经过表面机械研磨处理（SMAT）的纯钛（Ti）表面上形成NaCl溶液。膜的腐蚀电位（-0.21 V）显著高于未处理样品的腐蚀电位（-0.92 V）。腐蚀电流密度比未处理试样低一个数量级。SMAT降低了TiO 2薄膜中的空位凝聚，从而抑制了Cl-在薄膜中的侵入和扩散。
A stable passive film exhibiting good corrosion resistance in a 3.5 wt.% NaCl solution was formed on the surface of pure titanium (Ti) subjected to a surface mechanical attrition treatment (SMAT). The corrosion potential (−0.21 V) of the film was significantly higher than that (−0.92 V) of the untreated sample. Moreover, the corrosion current density was an order of magnitude lower than that of the untreated sample. SMAT resulted in a decrease in the vacancy condensation in the TiO2film, thereby inhibiting the invasion and diffusion of Cl−in the film.