Preparation of the Multiple Rare Earth Conversion Membrane based on the Magnesium Alloy AZ91 and their Corrosion Resistance Performance
Chemical membrane coating method was adopted for AZ91 magnesium alloy surface to explore the preparation method for cerium (Ce) conversion membrane,lanthanum (La) conversion membrane and double rare earth conversion membrane.The methods such as Scanning Electron Microscope (SEM),Energy Spectrometer (EDS) and X-ray Crystallography (XRD) were introduced for the detection of conversion membrane.The experiment results revealed that the corrosion resistance of double rare earth conversion membrane would get strengthened firstly,and degraded later along with the prolongation of conversion time.The corrosion resistance from low to high of conversion membrane is cerium (Ce) conversion membrane < lanthanum (La) conversion membrane < double rare earth conversion membrane.Therefore,double rare earth conversion membrane is more effective to improve the corrosion resistance for magnesium alloy and its corrosion resistance is better than that of single rare earth conversion membrane.
Chemical conversion membrane AZ91 magnesium alloy Corrosion resistance protection, Pretreatment
Zhang Guohui Li Cancan Li Mei Zhang Ying Geng Haoran
Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials;School of Ma School of Materials Science and Engineering, University of Jinan, 106 Jiwei Road, Jinan 250022,PR Ch
国际会议
太原
英文
305-309
2012-06-23（万方平台首次上网日期，不代表论文的发表时间）