دراسة تأثير الملح المزدوج (KAl(SO4)‎2.12H2O)‎ في سلوك التآكل للفولاذ واطئ الكاربون

Abstract EN

This work included study of the effect of the salt (KAl (SO4) 2.12 H2O) on the corrosion behaviour of the low carbon steel using the simple immersion method in aqueous solution with different percentages of the salt (KAl (SO4)2.12H2O) at room temperature and acidic solution (3 vol.

% HCl) at temperatures (RT, 40, 50° C) The weight loss method used as an indicator to the effect of the solutions on the low carbon steel, The microscopic examination with (600 X) is used in this study too.

The results of effects of addition of the salt (KAl (SO4) 2.12 H2O) to the natural water showed an increase in corrosion rate and decrease in corrosion resistance with increasing salt concentration .

In the other hand the corrosion behaviour in (3vol % HCl) solution at room temperature show that the addition of (KAl (SO4) 2.12 H2O) decreases the corrosion rate and this decreasing continue with increasing the concentration up to (0.5 wt.

% (KAl (SO4) 2.12 H2O)) because of the presence of (Al3 +) ions in the solution, after that corrosion rate increases because of increasing of (SO4 2-) ions concentration.

The increasing of temperature increases the corrosion levels because the corrosion is a chemical reaction depends on temperature,but the general behaviour of decreasing corrosion.