摘要
采用KH-550硅烷溶液对AZ31镁合金试片进行硅烷处理,形成一层无色透明的有机硅薄膜。通过盐水浸泡和电化学测试技术对不同硅烷浓度下所制备的硅烷膜性能进行评定,结果表明,在浓度为8%的硅烷溶液中浸涂50 s,表干后在100℃陈化0.5 h,所形成的硅烷膜层与镁合金基体之间的界面结合较好,很好地抑制了镁合金的腐蚀,提高了其耐腐蚀性能。
AZ31 magnesium alloy was surface treated with KH -550 silane solutions, forming a colorless and transparent silane film, salt solution immersion and polarization tests were conducted to investigate the corrosion behavior of the coated magnesium alloy treated by five silane solutions with different silane concentrations. The results indicated that when the concentration of KH -550 was 8%, the immersion time 50 s, and heated at 100 ℃ for 0.5 h after surface dry, the interracial bonding strength between the prepared silane film and AZ31 magnesium alloy was excellent, and the corrosion resistance of magnesium alloy was greatly improved by silane treatment.
出处
《涂料工业》
CAS
CSCD
北大核心
2009年第5期63-65,共3页
Paint & Coatings Industry
基金
重庆市教育委员会科学技术研究项目KJ080627资助
关键词
AZ31镁合金
硅烷处理
腐蚀形貌
极化曲线
耐蚀性
粘结强度
AZ31 magnesium alloy
silane treatment
corrosion morphology
polarization curve
corro- sion resistance
bonding strength
