Structural modifications and corrosion behavior of martensitic stainless steel nitrided by plasma immersion ion implantation
Structural modifications and corrosion behavior of martensitic stainless steel nitrided by plasma immersion ion implantation
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等离子浸没离子注入氮化马氏体不锈钢的组织改性及腐蚀行为
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
K. Short
中科院分区：
文献类型：
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作者：
C. Figueroa;F. Alvarez;Zhaoming Zhang;G. Collins;K. Short
在这项工作中，我们报告了通过等离子体浸没离子注入（PI3）氮化的马氏体不锈钢（MSS）的结构改性和腐蚀行为的研究。通过 X 射线衍射、扫描电子显微镜、能量色散 X 射线光谱、光电子能谱和动电位电化学测量对样品进行了表征。根据 PI3 处理温度，观察到三种不同的材料性能趋势。在较低的注入温度（例如360°C）下，材料的耐腐蚀性能得到改善，并且获得e-(Fe,Cr)3N致密相，而晶体形态没有变化。在中间温度（例如 430°C）下，CrN 析出物主要在晶界处形成，导致与原始 MSS 材料相比耐腐蚀性下降。在较高温度（例如 500°C）下，基体中氮和铬相对较大的迁移率引起 CrN 的随机沉淀，转变...
In this work we report a study of the structural modifications and corrosion behavior of martensitic stainless steels (MSS) nitrided by plasma immersion ion implantation (PI3). The samples were characterized by x-ray diffraction, scanning electron microscopy, energy dispersive x-ray spectroscopy, photoemission electron spectroscopy, and potentiodynamic electrochemical measurements. Depending on the PI3 treatment temperature, three different material property trends are observed. At lower implantation temperatures (e.g., 360 °C), the material corrosion resistance is improved and a compact phase of e-(Fe,Cr)3N, without changes in the crystal morphology, is obtained. At intermediate temperatures (e.g., 430 °C), CrN precipitates form principally at grain boundaries, leading to a degradation in the corrosion resistance compared to the original MSS material. At higher temperatures (e.g., 500 °C), the relatively great mobility of the nitrogen and chromium in the matrix induced random precipitates of CrN, transfo...