载波钝化对AZ91D镁合金耐蚀性能的影响 Ⅱ-载波钝化对AZ91D镁合金表面特性的影响  

EFFECT OF ALTERNATING VOLTAGE(AV) MODULATED PASSIVATION ON CORROSION RESISTANCE OF AZ91D MAGNESIUM ALLOY Ⅱ-Effect of Alternating Voltage(AV) Modulated Passivation on Surface Properties of AZ91D Magnesium Alloy

作　　者：刘晓兰[1] 徐雅欣[2] 张涛 邵亚薇 孟国哲 王福会[1,2] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院腐蚀与防护实验室,哈尔滨150001 [2]中国科学院金属研究所金属腐蚀与防护国家重点实验室,沈阳110016

出　　处：《中国腐蚀与防护学报》2010年第3期187-191,共5页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金项目(50601007)资助

摘　　要：采用载波钝化方法对AZ91D镁合金进行载波钝化,使用原子力显微镜(AFM)、接触角仪(FTA)仪器和X射线光电子谱仪(XPS)研究了载波钝化对AZ91D镁合金表面特性的影响。结果表明:载波钝化后AZ91D镁合金表面生成一层均匀且致密的表面膜,内层由MgO和少量Al_2O_3组成,外层由Mg(OH)_2、MgO和少量Al(OH)_3组成。AZ91D magnesium alloy was treated by alternating voltage（AV）modulated passivation technique. Atomic force microscopy（AFM）,First ten angstroms（FTA）contact angle-meter and X-ray photoelectron spectroscopy（XPS）were employed to investigate the influence of AV-modulated passivation on the surface properties of the films formed on the AZ91D magnesium alloy after AV-modulated passivation.The results showed that a uniform and stable film was formed after AV-modulated passivation.The surface films on the samples after AV-modulated passivation consist of an inner layer rich in MgO.with a little Al_2O_3,and an outer layer of Mg（OH）_2,MgO with a little Al（OH）_3.

关 键 词：AZ91D镁合金 载波钝化 表面特性 原子力显微镜 X射线光电子谱仪 

分 类 号：TG174.36[金属学及工艺—金属表面处理]