عنوان : ( Investigation of the Pitting Corrosion Behavior of 403 Martensitic Stainless Steel in Bromide and Iodide Solutions )
نویسندگان: سهراب پهلوان , کیوان صفار , ایمان تاجی , محمدهادی مؤید , سحر ملازاده بیدختی ,
Full Textچکیده
In this study, the pitting corrosion behavior of 403 martensitic stainless steel was investigated in NaBr and NaI solutions, by using potentiodynamic and potentiostatic techniques. The observations showed that halide ions have bilinear effect on the pitting corrosion. The bromide ion due to its smaller ionic radius is more active in the initiation step of metastable pits, so that it increases the frequency of occurrence of metastable pits. On the other hand, the iodide ion has a greater effect on the propagation step, due to the low acidity of HI. Altogether, the bromide ion is more aggressive than iodide and has a lower pitting potential.
کلمات کلیدی
Pitting Corrosion; Iodide; Bromide; Metastable pits; Martensitic stainless steel
@article{paperid:1072445,
author = {پهلوان, سهراب and صفار, کیوان and تاجی, ایمان and مؤید, محمدهادی and ملازاده بیدختی, سحر},
title = {Investigation of the Pitting Corrosion Behavior of 403 Martensitic Stainless Steel in Bromide and Iodide Solutions},
journal = {مهندسی متالورژی و مواد},
year = {2018},
volume = {29},
number = {2},
month = {July},
issn = {2008-7462},
pages = {91--101},
numpages = {10},
keywords = {Pitting Corrosion; Iodide; Bromide; Metastable pits; Martensitic stainless steel},
}
%0 Journal Article
%T Investigation of the Pitting Corrosion Behavior of 403 Martensitic Stainless Steel in Bromide and Iodide Solutions
%A پهلوان, سهراب
%A صفار, کیوان
%A تاجی, ایمان
%A مؤید, محمدهادی
%A ملازاده بیدختی, سحر
%J مهندسی متالورژی و مواد
%@ 2008-7462
%D 2018
