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Modelling of type 304 stainless steel crevice corrosion propagationin chloride environments |
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รหัสดีโอไอ | |
Creator | 1. Adewale George Adeniyi 2. Oladipupo Olaosebikan Ogunleye 3. Mondiu Olayinka Durowoju 4. Omodele Abosede Abiodun Eletta |
Title | Modelling of type 304 stainless steel crevice corrosion propagationin chloride environments |
Publisher | Research and Development Office, Prince of Songkla University |
Publication Year | 2562 |
Journal Title | Songklanakarin Journal of Science and Technology |
Journal Vol. | 41 |
Journal No. | 6 |
Page no. | 1309-1313 |
Keyword | 304 stainless steel, crevice corrosion propagation, chloride environments modelling |
URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
ISSN | 0125-3395 |
Abstract | Modeling of Type 304 stainless steel crevice corrosion propagation in terms of penetration rate in freshwater, brackishand marine environments has been carried out. The crevice assembly used for this study comprised of coupon (SS-304), polytetrafluoroethylene (crevice former) and fasteners (titanium bolt, nut and washers) designed with crevice scaling factor of 8 and 40crevice sites immersed in various chloride solution concentrations of 1.5, 3.0 and 4.5 w/w % simulating environmental conditionsin full immersion test. The test coupons were subjected to the respective environments. The set up were allowed to stand for 60days with a set withdrawn 15 day-intervals to measure the depth of attack, y(t) in the crevice. The model equation developed couldbe used for the estimation of SS-304 crevice propagation trend in freshwater, brackish and marine environments as it showed goodcorrelation with the experimental data, provided all other factors are constant. |