CORROSION BEHAVIOR OF STAINLESS STEEL IN SIMULATED CONCRETE PORE SOLUTIONS
不锈钢在模拟混凝土孔隙液中的腐蚀行为研究

In order to discuss the possibility of stainless steel as bone of concrete instead of plain carbon steel, the corrosion behavior of the plain carbon steel and stainless steel in simulated concrete pore solutions with different chloride ion concentrations and pH values were studied by potentiodynamic polarization and alternating current impedance. The results show that the Cl^- concentration had little effect on stainless steel even though lower pH values did appear accompanying with carbonization of concrete the passivated film was still compact. Otherwise, the corrosion of the plain carbon steel became serious and the passivated film in simulated pore solutions was attacked by Cl^- quickly.