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中文摘要：
在不锈钢的表面上形成的被动电影的深水平施主电离行为被 Mott-Schottky 阴谋调查。不锈钢的表面上的被动电影的深水平施主电离行为的转变过程能与升起的沉浸时间被划分成 4 个阶段，这被显示。在起始的沉浸阶段(10 min ) ，位于联合起来的房间的八面的地点的 Fe (II ) 没被电离，深水平不出现在 Mott-Schottky 阴谋。在第二个阶段( 938 h )，位于八面的地点的 Fe ( II )开始电离，它在深水平施主产生和深水平施主的密度的结果几乎与扩充沉浸时间是不变的但是空间费用层的厚度与升起的沉浸时间是越来越更厚的。在第三个阶段(48 h12 d ) ，深水平施主的密度与增加沉浸时间和被动电影空间费用层减少的厚度升起。最后上演(在 23 d 上面) ，深水平施主的空间费用层厚度和密度不再与增加沉浸时间被改变。在全面沉浸阶段，浅水平施主密度总是是不变的。深水平施主电离的机制能是金属空缺的产生，它导致水晶格子错误，错误精力在八面的地点主张 Fe (II ) 的电离。
英文摘要：
Deep level donor＇s ionization behavior of passive film formed on the surface of stainless steel was investigated by Mott-Schottky plots. It is indicated that transformation process of deep level donors＇ ionization behavior of passive film on surface of stainless steel can be divided into 4 stages with rising immersion time. At the initial immersion stage （10 min）, Fe（II） located in the octahedral sites of the unit cell is not ionized and the deep level does not appear in Mott-Schottky plots. At the second stage （9-38 h）, Fe（II） located in the octahedral sites starts to be ionized, which results in deep level donors＇ generation and density of deep level donors almost is constant with augmenting immersion time but the thickness of space charge layer is more and more thicker with rising immersion time. At the third stage （48 h-12 d）, density of deep level donors rises with increasing immersion time and the thickness of passive films space charge layer decreases. At last stage （above 23 d）, both the space charge layer＇s thickness and density of deep level donors are no longer changed with increasing immersion time. In the overall immersion stage, the shallow level donors＇ density is invariable all the time. The mechanism of deep level donor＇s ionization can be the generation of metal vacancies, which results in crystal lattice＇s aberration and the aberration energy urges the ionization of Fe（ II ） in octahedral sites.
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