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Corrosion resistance enhancement in acidic solution for austenitic stainless steel by gas-phase hybrid deposition process
المؤلفون المشاركون
Hasan, A. S.
Muhammad, F. Q.
Thamir, A. D.
Abid, A. L.
المصدر
Engineering and Technology Journal
العدد
المجلد 35، العدد 8A (31 أغسطس/آب 2017)، ص ص. 788-794، 7ص.
الناشر
تاريخ النشر
2017-08-31
دولة النشر
العراق
عدد الصفحات
7
التخصصات الرئيسية
العلوم الهندسية والتكنولوجية (متداخلة التخصصات)
الملخص EN
In acidic environments the corrosion rate of stainless steels is considered high, this is due to pitting occurrence in concentrated chloride environments.
The Austenitic steels such as type 316 stainless steel generally not recommended for Hydrochloric acid storage in petroleum planets except when solutions are very dilute and at room temperature, otherwise pitting may occur.
In this work, a multicomponent coating (Ti-B-N-C) was deposited on the austenitic stainless steels (AISI 316) that used in petroleum industry.
The coating process has been achieved by mixed vapor deposition technique; this was done in attempt to improve the resistance to pitting corrosion for austenitic stainless steels surface.
The structural characterization for the deposited Ti-Base coating was done by using XRD technique, and the Scanning Electron Microscopy (SEM).
Electrochemical corrosion tests have been performed by using electrochemical test in 0.25M hydrochloric acid (HCl) as an aqueous solution at 22˚C to obtain the anodic polarization curves for the coated surfaces.
Several interesting observations have been made During the test.
As expected, the surface of the AISI 316 suffers from a sudden increase in the current density at the potential above 1500 mV due to the occurrence of pitting corrosion.
In addition, the Ti-B-C-N coating surfaces show great future in reducing the current density of the steel surface in the anodic region, indicating improved pitting resistance for all Ti-based coating samples.
No evidence for pitting corrosion was observed in the coated surfaces during electrochemical test even at potentials up to 2000 mV, instead, general corrosion was observed for the samples that was deposited at 750˚C since low potential values was observed for these samples .
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Thamir, A. D.& Muhammad, F. Q.& Hasan, A. S.& Abid, A. L.. 2017. Corrosion resistance enhancement in acidic solution for austenitic stainless steel by gas-phase hybrid deposition process. Engineering and Technology Journal،Vol. 35, no. 8A, pp.788-794.
https://search.emarefa.net/detail/BIM-795530
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Thamir, A. D.…[et al.]. Corrosion resistance enhancement in acidic solution for austenitic stainless steel by gas-phase hybrid deposition process. Engineering and Technology Journal Vol. 35, no. 8A (2017), pp.788-794.
https://search.emarefa.net/detail/BIM-795530
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Thamir, A. D.& Muhammad, F. Q.& Hasan, A. S.& Abid, A. L.. Corrosion resistance enhancement in acidic solution for austenitic stainless steel by gas-phase hybrid deposition process. Engineering and Technology Journal. 2017. Vol. 35, no. 8A, pp.788-794.
https://search.emarefa.net/detail/BIM-795530
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes appendix : p. 794
رقم السجل
BIM-795530
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