Title :
Electrochemistry study on the environmental factors of pitting corrosion of type 304 stainless steel
Author :
Zhang, Shenghan ; Tan, Yu ; Liang, Kexin
Author_Institution :
Sch. of Environ. Sci. & Eng., North China Electr. Power Univ., Baoding, China
Abstract :
The pitting breaking potential (Eb) and repassivation potential (Ep) of 304 stainless steel were studied by electrochemistry method. These potentials were highly affected by the concentration of chloride solution, pH and buffer capacity, which defined as environmental factors. The buffer capacity and the concentration of non-aggressive anions in the solutions show some effects on the pitting initiation and repassivation of stainless steel. The pitting Eb and Ep show a strong dependence on a parameter J as general environmental factor, which is defined as the product of concentration of aggressive anions and buffer capacity. Electrochemistry study on the environmental factors on pitting corrosion of 304 stainless steel is a new method to investigate the anti-corrosion ability of stainless steel.
Keywords :
corrosion resistance; electrochemistry; environmental factors; negative ions; stainless steel; aggressive anions; electrochemistry method; environmental factors; nonaggressive anions; pitting breaking potential; pitting corrosion; repassivation potential; type 304 stainless steel; Corrosion; Electric potential; Environmental factors; Iron; Steel; System-on-a-chip; buffer capacity; environmental factor; pitting corrosion; stainless steel;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5965197