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题名: Corrosion Behavior of HVOF-Sprayed Fe-Based Alloy Coating in Various Solutions
作者: Qiao, Lei;  Wu, Yuping;  Hong, Sheng;  Qin, Yujiao;  Shi, Wei;  Li, Gaiye
发表日期: 2017-8-1
摘要: A Fe-based amorphous/nanocrystalline coating was prepared by the high-velocity oxygen fuel (HVOF) spraying process. The coating was characterized by x-ray diffraction, scanning electron microscopy and transmission electron microscopy. The corrosion resistances of the Fe-based coating and a reference electroplated hard chromium (EHC) coating were evaluated in a 3.5% NaCl solution, a 1 mol/L HCl solution and a 1 mol/L NaOH solution using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). All of the results indicated that the corrosion resistance of the Fe-based coating was superior to the resistance of the EHC coating in both the 3.5% NaCl solution and the 1 mol/L HCl solution due to the dense structure and fewer defects of the Fe-based coating. However, the corrosion resistance of the Fe-based coating was inferior to corrosion resistance of the EHC coating in the 1 mol/L NaOH solution. This could be ascribed to the drastic passivation of the EHC coating in an alkaline environment.
刊名: SPRINGER
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
Qiao, Lei,Wu, Yuping,Hong, Sheng,et al. Corrosion Behavior Of Hvof-sprayed Fe-based Alloy Coating In Various Solutions[J]. Springer,2017,26(8):3813-3820.

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