Abstract
In this paper we present the results of the comparative study of the performance of two sulfuric and oxalic anodizing process already retained, based on the superposition of the surface responses. For this purpose two Doehlert experimental designs with three variables (temperature, current density, sulphuric acid concentration) and other three variables (temperature, current density, oxalic acid concentration) were realized. Three responses were studied, namely: growth rate, Vickers microhardness, wear rate after friction test of the anodic oxide layer. A comparative study based on the surface responses was carried out. Compared with the sulphuric acid bath, it was found that the oxalic acid bath affords low growth rates, high wear resistance and high microhardness but less ductile layers. The observed mechanical properties of the oxide layers can be related to their morphology revealed by the scanning electron microscopy and optical observations and their chemical composition determined by the glow-discharge optical emission spectroscopy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
