Effects of N and Mo on the electrochemical behavior of laser-alloyed stainless steels in a 3.5 wt.% NaCl solution
Effects of N and Mo on the electrochemical behavior of laser-alloyed stainless steels in a 3.5 wt.% NaCl solution
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DOI：
10.1016/0254-0584(96)80015-0
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发表时间：
1995-12
影响因子：
4.6
通讯作者：
C. Huang;W. Tsai;Ju-tung Lee
中科院分区：
文献类型：
--
作者：
C. Huang;W. Tsai;Ju-tung Lee
研究了激光合金化Fe-Cr-Ni-Si-N和Fe-Cr-Ni-Mo-Si-N不锈钢在3.5wt.% NaCl溶液。采用循环动电位极化曲线和电化学阻抗谱（EIS）测试方法研究了合金化层在脱气3.5wt.% pH 4的NaCl溶液。用X射线光电子能谱对EIS测量后的样品表面进行了表征。实验结果表明，钼的共合金化可以改善激光合金化含氮不锈钢在氯化物溶液中的钝化和抗极化性能。讨论了合金的电化学行为与合金元素在合金表面的化学状态的关系。
The electrochemical behavior of the laser-alloyed Fe-Cr-Ni-Si-N and Fe-Cr-Ni-Mo-Si-N stainless steels was studied in a 3.5 wt.% NaCl solution. Cyclic potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS) measurements were performed to evaluate the corrosion resistance of the alloyed layers in deaerated 3.5 wt.% NaCl solution at pH 4. The surfaces of the samples after EIS measurements were characterized with X-ray photoelectron spectroscopy. The experimental results showed that the passivation and polarization resistance of laser-alloyed nitrogen-containing stainless steels in chloride-containing solution could be improved by co-alloying molybdenum. The electrochemical behavior in connection with the chemical states of alloying elements on the surfaces of the alloys was discussed.