Electrochemical corrosion resistance of CeO2-Cr/Ti coatings on 304 stainless steel via pack cementation

• Published in: Journal of rare earths Vol. 33; no. 10; pp. 1122 - 1128
• Main Author: 邢学刚 韩志军 王鹤峰 卢盼娜
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2015
• Subjects: 304 stainless steel; 304不锈钢; electrochemical corrosion resistance; pack cementation; rare earths; Ti coating; 包埋法; 扫描电子显微镜; 氧化铈; 电化学腐蚀; 耐腐蚀性能; 钛涂层; 铬; electrochemical corrosion resistance; Ti coating; 304 stainless steel; pack cementation; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/s1002-0721(14)60535-4

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.