Characterization and Comparison of Corrosion Behavior of Nanostructured TiAlN and AlCrN Coatings on Superfer 800H (INCOLOY 800 H) Substrate

Autor:	D. Puri, S. Prakasha, Vikas Chawla, Amita Chawla, Buta Singh Sidhu
Rok vydání:	2009
Předmět:	Field emission microscopy Tafel equation Materials science Optical microscope law Metallurgy Substrate (electronics) Polarization (electrochemistry) Nitriding Incoloy law.invention Corrosion
Zdroj:	Journal of Minerals and Materials Characterization and Engineering. :715-727
ISSN:	2327-4085 2327-4077
Popis:	Nitrided coatings have been used to increase hardness and to improve the wear and corrosion resistance of structural materials. In this work, TiAlN and AlCrN coatings were deposited on Superfer 800H (INCOLOY 800 H) substrate by using Balzer’s rapid coating system (RCS) machine (make Oerlikon Balzers, Swiss) under a reactive nitrogen atmosphere. The coated samples were subjected to optical microscopy (OM), XRD analysis, Field emission scanning electron microscope (FESEM with EDAX attachment), AFM analysis. The corrosion resistance of the substrate, TiAlN-coated and AlCrN-coated samples in a 3 wt% NaCl solution was evaluated and compared by electrochemical potentiodynamic polarization method. It was found that the AlCrN-coating exhibited better corrosion resistance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::538caa5acb19e4ada7eb9afe0129133f https://doi.org/10.4236/jmmce.2009.89062 Zobrazit plný text záznamu