Optimization of mild steel anodizing using box-Wilson experimental design

Abstract EN

In this study, a mild steel alloy has been used to determine the influences of voltage, temperature, concentration and time on the film growth, thickness, characteristics and properties of anodic oxide film.

A Box-Wilson experimental design method was used to determine effects of parameters and optimum conditions for anodized mild steel alloy.

Anodizing of the mild steel alloys in potassium hydroxide solution generates the barrier and porous layers of anodic films according to the conditions used.

Mild steel alloy is anodized under different conditions in the KOH solution.

Constant voltage technique is used to form oxide films on mild steel alloys in (KOH) electrolyte as a function of the anodization voltage of (1-6V), concentration of (40-70Vol.

%), temperature of (20- 100°C) and anodization time of (5-75 min).

The second order response surface model is given in equations.

The model is used in the formulation of objective and constraint functions for the optimization of a optimum conditions of mild steel: