Chromate (Cr6+)-free surface treatments for active corrosion protection of aluminum alloys: a review / Shri Shri Prakash in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 1 (01/2024) . - p. 105-135 Titre : Chromate (Cr6+)-free surface treatments for active corrosion protection of aluminum alloys: a review Type de document : texte imprimé Auteurs : Shri Shri Prakash, Auteur ; J. N. Balaraju, Auteur Année de publication : 2024 Article en page(s) : p. 105-135 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aluminium -- Alliages Anticorrosifs Anticorrosion Chrome hexavalent Métaux -- Oxydation anodique Métaux -- Revêtements protecteurs Revêtement de conversion Sol-gel, Procédé Index. décimale : 667.9 Revêtements et enduits Résumé : For many decades, chromium and its derivatives have been the integral part in the corrosion protection of structural parts and have a wide application in the aircraft industry. It is used in the pre-treatment of aluminum substrate in the form of anodization or conversion coating and in the primer layer as a chromate additive. However, harmful impact of hexavalent chromium (Cr6+) compounds on the human health and the environment has triggered the need to find alternative corrosion protection measures. Finding an alternative to chromate is an arduous effort as chromates are known to provide a corrosion protection under extreme environmental conditions over a very wide range of pH. Active corrosion protection ability, commonly known as self-healing ability, is a hallmark of chromates. In a pursuit to realize an eco-friendly coating system, there are efforts worldwide to find alternatives both for primer component and for the pre-treatment process. This review focuses on work that has been carried out to replace Cr6+ in the pre-treatment process. Importance is given to those alternative pre-treatment processes that have the potential to provide active corrosion protection and possibly replace chromic acid-based anodization and conversion coatings. Note de contenu : - Introduction - Eco-friendly alternatives with active corrosion protection - Transition metal ions - Cerium-based solutions - Table 1 : Summary of the coating development and corrosion performance of the coatings with Cr3+-based sealing formulation - Table 2 : Summary of the coating development and corrosion performance of the coatings with transition metal ions added to anodizing bath - Table 3 : Summary of the coating development and corrosion performance of the coatings with transition metals added as a corrosion inhibitor to the sealing bath - Table 4 : Summary of the coating development and corrosion performance of the anodic coating with cerium as a corrosion inhibitor added to the sealing bath - Table 5 : Summary of the coating development and corrosion performance of the hybrid sol-gel coatings DOI : https://doi.org/10.1007/s11998-023-00831-1 En ligne : https://drive.google.com/file/d/1zoy-3zC6Ro32of8jMsyuV9AV3spMzcVq/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40438 [article]

Réservation

Réserver ce document

Exemplaires (2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
24443	-	Périodique	Bibliothèque principale	Documentaires	Disponible
24735	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)