Performance of ceramic coating of MB3 magnesium alloy by micro-arc oxidation

摘要：

　　Micro-arc oxidation (MAO) method was used for the surface modification of MB3 magnesium alloy.The morphology feature,phase composition,and chemical composition of the formed ceramic coatings were studied by metallographic microscope,scanning electron microscopy (SEM),XRD,respectively.Drop test has been applied to study the corrosion resistance of MB3 Mg alloy with and without micro-arc oxidation treatment.The present result indicates that,through MAO,ceramic coatings were in-situ fabricated on the surface of MB3 Mg alloy,the micro-arc oxidation coating is relatively dense and uniform,maximum thickness is more than 97μm.The dominant phase of the coating is spinal Mg2SiO4 (Forsterite) and dissociative MgO (Periclase).Drop test shows that after oxidation the corrosion resistance of MB3 Mg alloy is greatly improved.

关键词： MB3 magnesium alloy Micro-arc oxidation Corrosion resistance Drop test

作者: Shunqi Zheng Liping Zhu Guiru Chang Chuang Lu Xiaojing Li

作者单位: North University of China,Taiyuan 030051,China;The Ningbo branch of Ordnance Science institute of Ch The Ningbo branch of Ordnance Science institute of China,Ningbo 315103,China

会议类型: 国际会议

会议名称: 2012 International Meeting on Opto-Electronics Engineering and Materials Research(OEMR2012)(2012光电工程与材料国际会议)

会议地点: 沈阳

会议语种:英文

页码: 38-42

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）