Abstract
In this study, stainless steel type 410 has been used to determine the influences of voltage, temperature, concentration and time on thickness and characteristics of anodic oxide film. A response surface methodology using Minitab software (releases 18) was used to determine the effects of anodizing parameters and optimum conditions for anodized 410 stainless steel. A Constant voltage technique is used to form oxide films in (35 wt.% of NaOH solution) electrolyte as a function of the anodization voltage of (1-9V), temperature of ((20)-(80)°C) and anodization time of (20-60 min). The optimum conditions were voltage (1 V), temperature ((20)°C), and time (60 min). The results of EDS test for optimal conditions confirm the formation of Cr2O3 oxide scale in the treated specimen due to existence of Cr and O elements as major constituents of Cr2O3. For the anodization specimens , the surface adopts a ‘sponge’ like morphology , formation of a homogeneously distributed oxide scale with a porous structure.
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