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Effect of Citric Acid Hard Anodizing on the Mechanical Properties and Corrosion Resistance of Different Aluminum Alloys.
Cabral-Miramontes, José; Almeraya-Calderón, Facundo; Méndez-Ramírez, Ce Tochtli; Flores-De Los Rios, Juan Pablo; Maldonado-Bandala, Erick; Baltazar-Zamora, Miguel Ángel; Nieves-Mendoza, Demetrio; Lara-Banda, María; Pedraza-Basulto, Gabriela; Gaona-Tiburcio, Citlalli.
Afiliação
  • Cabral-Miramontes J; Universidad Autónoma de Nuevo León, FIME, Centro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), San Nicolás de los Garza 66455, Mexico.
  • Almeraya-Calderón F; Universidad Autónoma de Nuevo León, FIME, Centro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), San Nicolás de los Garza 66455, Mexico.
  • Méndez-Ramírez CT; Facultad de Ingeniería Civil, Universidad Veracruzana, Xalapa 91000, Mexico.
  • Flores-De Los Rios JP; Tecnológico Nacional de Mexico-Instituto Tecnológico de Chihuahua, Av. Tecnológico 2909, Chihuahua 31130, Mexico.
  • Maldonado-Bandala E; Facultad de Ingeniería Civil, Universidad Veracruzana, Xalapa 91000, Mexico.
  • Baltazar-Zamora MÁ; Facultad de Ingeniería Civil, Universidad Veracruzana, Xalapa 91000, Mexico.
  • Nieves-Mendoza D; Facultad de Ingeniería Civil, Universidad Veracruzana, Xalapa 91000, Mexico.
  • Lara-Banda M; Universidad Autónoma de Nuevo León, FIME, Centro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), San Nicolás de los Garza 66455, Mexico.
  • Pedraza-Basulto G; Facultad de Ingeniería y Tecnología, Universidad Autónoma del Carmen, Ciudad del Carmen Campeche 24180, Mexico.
  • Gaona-Tiburcio C; Universidad Autónoma de Nuevo León, FIME, Centro de Investigación e Innovación en Ingeniería Aeronáutica (CIIIA), San Nicolás de los Garza 66455, Mexico.
Materials (Basel) ; 17(17)2024 Aug 29.
Article em En | MEDLINE | ID: mdl-39274675
ABSTRACT
Hard anodizing is used to improve the anodic films' mechanical qualities and aluminum alloys' corrosion resistance. Applications for anodic oxide coatings on aluminum alloys include the space environment. In this work, the aluminum alloys 2024-T3 (Al-Cu), 6061-T6 (Al-Mg-Si), and 7075-T6 (Al-Zn) were prepared by hard anodizing electrochemical treatment using citric and sulfur acid baths at different concentrations. The aim of the work is to observe the effect of citric acid on the microstructure of the substrate, the mechanical properties, the corrosion resistance, and the morphology of the hard anodic layers. Hard anodizing was performed on three different aluminum alloys using three citric-sulfuric acid mixtures for 60 min and using current densities of 3.0 and 4.5 A/dm2. Vickers microhardness (HV) measurements and scanning electron microscopy (SEM) were utilized to determine the mechanical characteristics and microstructure of the hard anodizing material, and electrochemical techniques to understand the corrosion kinetics. The result indicates that the aluminum alloy 6061-T6 (Al-Mg-Si) has the maximum hard-coat thickness and hardness. The oxidation of Zn and Mg during the anodizing process found in the 7075-T6 (Al-Zn) alloy promotes oxide formation. Because of the high copper concentration, the oxide layer that forms on the 2024-T6 (Al-Cu) Al alloy has the lowest thickness, hardness, and corrosion resistance. Citric and sulfuric acid solutions can be used to provide hard anodizing in a variety of aluminum alloys that have corrosion resistance and mechanical qualities on par with or better than traditional sulfuric acid anodizing.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Materials (Basel) Ano de publicação: 2024 Tipo de documento: Article País de afiliação: México País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Materials (Basel) Ano de publicação: 2024 Tipo de documento: Article País de afiliação: México País de publicação: Suíça