以加入不同含量稀土元素镧的节镍铬锰氮不锈钢为对象，采用交流阻抗和极化曲线分析技术，对节镍铬锰氮不锈钢在周浸腐蚀环境下的电化学行为进行了研究。通过试验结果分析得出：加入质量分数为0～0.014%镧元素，随着镧含量增加，基体的电极电位提高；在体积分数3.5%NaCl溶液中模拟海洋大气腐蚀的48天内，节镍铬锰氮不锈钢的耐蚀性随稀土镧含量增加，耐蚀性先增加后减小，含稀土镧质量分数为0.0049%的节镍铬锰氮不锈钢的耐蚀性最好。
Low-nickel Cr-Mn-N stainless steel with different content of rare earth La element was the research object, and the electrochemical behavior was studied by electrochemical impedance spectrum and polarization curve in the cyclic im-mersion corrosion environment. The experimental result shows that rare earth element La can affect the electrode potential of Low-nickel Cr-Mn-N stainless steel. When the content of La element was in the range of 0-0.014%, the amount of rare earth to be added was more, the substrate electrode potential of the stainless steel was higher. When Low-nickel Cr-Mn-N stainless steel contained the 0.004 9%of La element, the corrosion resistance was best in 3.5%NaCl solution for 48 days of simulation of atmospheric corrosion, but the content of La element exceeded a certain range, the corrosion resistance de-creased.
参考文献
| [1] | Lo K H;Shek C H .Recent Development in Stainless Steels[J].Material Science and Engineering,2009,39:104. |
| [2] | 袁琳,高原,张维,王成磊,黄承兴.201不锈钢离子渗氮和离子镀TiN复合强化层的耐蚀性[J].材料热处理学报,2011(z1):144-147. |
| [3] | 王一德,唐荻,党宁.国外特殊钢产业的特点及发展趋势[J].钢铁,2013(06):1-6. |
| [4] | 张慧敏,崔朝宇,赵莉萍,吴立凡,冯佃臣.镧对4Cr13钢组织及耐蚀性的影响[J].中国稀土学报,2011(01):100-104. |
| [5] | 赵莉萍,王锦飞,麻永林,赵勇桃.稀土元素Y对0Cr13不锈钢组织及腐蚀性能的影响[J].钢铁,2010(04):65-67,79. |
| [6] | Zhang Z X;Lin G;Xu Z .Effects of Lighttpre-Deformation on Pitting Corrosion Resistance of Copper-Bearing Ferrite Antibac-terial Stainless Steel[J].Journal of Materials Processing Technol-ogy,2008,205(1-3):419. |
| [7] | 曹楚南.腐蚀电化学原理[M].北京:化学工业出版社,2008 |
| [8] | 李灏,柴锋,何宜柱,苏航,罗小兵,赵捷.环境温度对船用耐蚀钢腐蚀行为的影响[J].钢铁,2013(08):65-69. |
| [9] | Wang H;Brady M P;More K L et al.Thermally Nitrided Stain-less Steels for Polymer Electrolyte Membrane Fuel Cell Bipolar Plates[J].Journal of Power Sources,2004,138(1-2):79. |
| [10] | A. Turnbull;P. E. Francis;M. P. Ryan;L. P. Orkney;A. J. Griffiths;B. Hawkins .A novel approach to characterizing the corrosion resistance of super duplex stainless steel welds[J].Corrosion: The Journal of Science and Engineering,2002(12):1039-1048. |
| [11] | 付燕,林昌健,蔡文达.微电化学技术研究双相不锈钢优选腐蚀行为[J].金属学报,2005(03):302-306. |
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