CAJ | 학술논문

利用微弧氧化技术的恒电流方式，在含有Na：SiO，和KF等电解质的溶液中制备了AZ91D镁合金微弧氧化层，通过扫描电镜观察分析及Cu加速盐雾腐蚀试验，研究了电解液中Na：SiO，和KF质量浓度对微弧氧化层结构及耐蚀性的影响。结果表明：在相同反应条件下，微弧氧化层厚度和表面粗糙度随Na：SiO，和KF质量浓度的增加而增加，微弧氧化层的耐蚀性取决于其表面粗糙度和厚度，粗糙度小、具有一定厚度的致密微弧氧化层耐蚀性好。
이용미호양화기술적항전류방식，재함유Na：SiO，화KF등전해질적용액중제비료AZ91D미합금미호양화층，통과소묘전경관찰분석급Cu가속염무부식시험，연구료전해액중Na：SiO，화KF질량농도대미호양화층결구급내식성적영향。결과표명：재상동반응조건하，미호양화층후도화표면조조도수Na：SiO，화KF질량농도적증가이증가，미호양화층적내식성취결우기표면조조도화후도，조조도소、구유일정후도적치밀미호양화층내식성호。
Micro arc oxidation coatings are prepared in the surface of AZ91 D magnesium alloy by means of constant current mode of micro arc oxidation technology in the electrolyte solution containing NaESiO3 and KF. Effect of the concentration of Na2SiO3 and KF in electrolyte solution on structure and corrosion resistance of micro are oxidation coatings is studied by observation and analysis of SEM and test of salt fog corrosion accelerated by Cu. The results show that with the increasing of the concentration of Na2SiO3 and KF under the same technology condition, the thickness and roughness of the micro arc oxidation coatings increase and the corrosion resistance of micro arc oxidation coatings depends on its thickness and roughness. The corrosion resistance of compact micro arc oxidation coating is better with small roughness and fit thickness