Effect of Plasma Carburizing Treatment on Pitting Corrosion Resistance of Type 304 Stainless Steel
Effect of Plasma Carburizing Treatment on Pitting Corrosion Resistance of Type 304 Stainless Steel
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等离子渗碳处理对304不锈钢耐点蚀性能的影响
DOI：
10.1149/07552.0001ecst
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
and Nobuyoshi Hara
中科院分区：
文献类型：
--
作者：
Waka Inoue;Izumi Muto;Yu Sugawara;and Nobuyoshi Hara
通过低温等离子渗碳提高了不锈钢的耐点蚀性能。从阳极极化来看，渗碳不锈钢比未处理的不锈钢表现出更高的点蚀电位，并且没有产生稳定的凹坑。夹杂物充当亚稳态凹坑的起始位点，但在渗碳不锈钢上没有观察到稳定凹坑。钢基体的主动溶解很可能被间隙碳抑制。
Pitting corrosion resistance of stainless steels was improved by plasma carburizing at low temperatures. From anodic polarization, carburized stainless steels showed higher pitting potential than that of untreated stainless steels, and no stable pit was generated. Inclusions acted as initiation sites for metastable pits, but no stable pit was observed on the carburized stainless steels. It is likely that active dissolution of steel matrix was suppressed by the interstitial carbon.