The pack cementation was employed to improve the electrochemical corrosion resistance of 304 stainless steel via CeO2- Cr modified Ti coatings. Continuous coatings were formed on 304 stainless steel surface by this me...The pack cementation was employed to improve the electrochemical corrosion resistance of 304 stainless steel via CeO2- Cr modified Ti coatings. Continuous coatings were formed on 304 stainless steel surface by this method. A series of electrochemical experiments were carried out to investigate the corrosion resistance of 304 stainless steel, Ti coating and CeO2-Cr/Ti coatings. The sample surface was investigated by scanning electron microscopy （SEM）. The phases of sample surface were detected by X-ray diffraction （XRD）. It was concluded from all the outcomes that the Corrosion resistance of the samples could be sorted in the following sequence： CeO2-Cr/Ti coatings〉Ti coating〉304 stainless steel.展开更多
Electrochemical polarization resistance technique was employed to study the effects of Ce on hot corrosion resistance of stainless steel 316, and preoxidation of surface-applied CeO2 coating on that of HK40 alloy. It ...Electrochemical polarization resistance technique was employed to study the effects of Ce on hot corrosion resistance of stainless steel 316, and preoxidation of surface-applied CeO2 coating on that of HK40 alloy. It is shown that a little Ce additives may improve hot corrosion resistance of stainless steel 316, especially inhibit the internal sulfidation along grain boundaries. The surface-applied CeO2 coating may greatly improve hot corrosion resistance of HK40 by promoting the formation of Cr2O3 scale.展开更多
基金Project supported by Shanxi Province Programs for Science and Technology Development(20110321051)Shanxi Province Natural Science Foundation(2013021013-5,2012011021-3)
文摘The pack cementation was employed to improve the electrochemical corrosion resistance of 304 stainless steel via CeO2- Cr modified Ti coatings. Continuous coatings were formed on 304 stainless steel surface by this method. A series of electrochemical experiments were carried out to investigate the corrosion resistance of 304 stainless steel, Ti coating and CeO2-Cr/Ti coatings. The sample surface was investigated by scanning electron microscopy （SEM）. The phases of sample surface were detected by X-ray diffraction （XRD）. It was concluded from all the outcomes that the Corrosion resistance of the samples could be sorted in the following sequence： CeO2-Cr/Ti coatings〉Ti coating〉304 stainless steel.
文摘Electrochemical polarization resistance technique was employed to study the effects of Ce on hot corrosion resistance of stainless steel 316, and preoxidation of surface-applied CeO2 coating on that of HK40 alloy. It is shown that a little Ce additives may improve hot corrosion resistance of stainless steel 316, especially inhibit the internal sulfidation along grain boundaries. The surface-applied CeO2 coating may greatly improve hot corrosion resistance of HK40 by promoting the formation of Cr2O3 scale.
