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Corrosion Behavior of Modified Anodic Oxide Coatings on AD31 Aluminium Alloy
Protection of Metals and Physical Chemistry of Surfaces ( IF 1.1 ) Pub Date : 2021-06-29 , DOI: 10.1134/s2070205121030175 M. A. Osipenko , D. S. Kharitonov , I. V. Makarova , V. I. Romanovsky , I. I. Kurilo
中文翻译:
AD31铝合金上改性阳极氧化涂层的腐蚀行为
更新日期:2021-06-29
Protection of Metals and Physical Chemistry of Surfaces ( IF 1.1 ) Pub Date : 2021-06-29 , DOI: 10.1134/s2070205121030175 M. A. Osipenko , D. S. Kharitonov , I. V. Makarova , V. I. Romanovsky , I. I. Kurilo
Abstract
The dependences of the protective properties of the anodic oxide coatings on the AD31 aluminum alloy surface modified with nitrates of magnesium, potassium, and some 3d-elements on the composition of sealing solutions and parameters of finishing treatment were established by scanning electron microscopy, potentiodynamic polarization, electrochemical impedance spectroscopy, and salt spray chamber tests. A mechanism of the formation of modified anodic oxide coatings during sealing and subsequent thermal treating was proposed.
中文翻译:
AD31铝合金上改性阳极氧化涂层的腐蚀行为
摘要
通过扫描电镜、电位动力学等方法,确定了镁、钾和某些 3 d元素的硝酸盐改性 AD31 铝合金表面阳极氧化涂层的保护性能对密封溶液组成和精加工参数的依赖性。极化、电化学阻抗谱和盐雾室测试。提出了在密封和后续热处理过程中形成改性阳极氧化涂层的机制。