PDF(Pubmed)
Abstract：
In this paper, glow nitriding processes at cathode potential are used at various temperatures to investigate how they affect the corrosion resistance of 316L steel in ethanol at temperatures of 22 °C and -30 °C. Lowering the test temperature reduces the corrosion rate of the nitrided layers. Conversely, glow nitriding at 450 °C improves the corrosion resistance of the tested steel. Increasing the nitriding temperature to 520 °C increases the corrosion rate. It should be noted that the ethyl alcohol solution, due to the lack of aggressive ions, does not cause significant changes in the corrosion rate of the steel. The value of the corrosion current varies in the range of 10-2-10-3 µA/cm2. Nitrided layers increase the contact angle measured for water and are entirely wettable for ethanol. The objective of this study is to evaluate the effect of the nitriding temperature of AISI 316L steel on its corrosion resistance in an ethanol solution at room temperature and at -30 °C.
摘要：
在本文中,在各种温度下使用阴极电位下的辉光氮化工艺，以研究它们如何影响316L钢在22°C和-30°C温度下在乙醇中的耐腐蚀性。降低测试温度降低了氮化层的腐蚀速率。相反，在450°C下进行辉光氮化可提高测试钢的耐腐蚀性。将氮化温度提高到520°C会增加腐蚀速率。应该注意的是，乙醇溶液，由于缺乏积极的离子，不会引起钢的腐蚀速率的显著变化。腐蚀电流的值在10-2-10-3µA/cm2的范围内变化。氮化层增加了对于水测量的接触角,并且对于乙醇是完全可润湿的。这项研究的目的是评估AISI316L钢的氮化温度对其在室温和-30°C的乙醇溶液中的耐腐蚀性能的影响。
