表面技术2011，Vol.40Issue(1)：40-43,4.
膦酸自组装膜在铝合金表面的吸附及缓蚀行为
The Adsorption and Corrosion Inhibition Behavior of TDPA Self-assembled Monolayers on the Surface of Aluminum Alloy
摘要
Abstract
Electrochemical deposition researches of zinc and polarization curves scanning on bare and assembled sample surfaces were performed to investigate the adsorption and corrosion inhibition behavior of TDPA (l-tetradecylphosphonic acid) SAMs (self-assembled monolayers ) on the surfaces of 2024 and 1060 aluminum alloys. The resultsshow that initial deposition of zinc preferentially happens on surfaces of intermetallic phase particles. And the SAMs on intermetallic phase surfaces are less dense than that on alloy base surfaces, resuting in the greater difference between the physical and chemical properties of base surfaces and intermetallic phase surfaces, which enhance the initial deposition rate of zinc on the assembled samples. The SAMs on 1060 alloy surfaces were much denser than that on 2024 alloy surfaces, which is the responsible reason for the more remarkable effect of TDPA films on the zinc deposition behavior on 1060 alloy surfaces and the more efficiency inhibition on the corrosion of cathodic polarization region and cathodic passivation region of 1060 alloy.关键词
铝合金/十四烷基膦酸/自组装膜/锌沉积/腐蚀Key words
aluminum alloy/ 1-tetradecylphosphonic acid/ self-assembled monolayers/ zinc deposition/ corrosion分类
矿业与冶金引用本文复制引用
王海人,屈钧娥,张强,吴慧敏,李晖..膦酸自组装膜在铝合金表面的吸附及缓蚀行为[J].表面技术,2011,40(1):40-43,4.基金项目
湖北省自然科学基金资助项目(2009CDB347) （2009CDB347）
国家自然科学基金项目(51001045) （51001045）
