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Electrochemical and analytical investigation of passive films formed on (UNS N-08028) in simulated phosphoric acid at different temperature
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نویسنده
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ben salah m. ,dhouibi l. ,jeannin m. ,triki e.
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منبع
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journal of materials and environmental science - 2015 - دوره : 6 - شماره : 7 - صفحه:1802 -1806
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چکیده
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The influence of temperature on the electrochemical behaviour of stainless steel was investigated in simulated and industrial phosphoric acid. stabilisation of the passive film was studied by potentiodynamique polarisation curves,and electrochemical impedance spectroscopy (eis) measurements. the alloy showed active-passive behaviour in this medium,an increase in temperature resulted in an increase in the passivation current density.the passive film formed on alloy sanicro 28 in simulated phosphoric acid is less stable than formed in industrial medium.
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کلیدواژه
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Acid solutions; EIS; Stainless steel
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آدرس
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unité de recherche et ingénierie,enit,université de tunis-el-manar,bp 37,tunis belvédère,tunisia,laboratoire des sciences de l'ingénieurpour i'environnement (lasie),fre 3474 cnrs,univ. la rochelle,bât. marie curie,av. michel crepeau, France, unité de recherche et ingénierie,enit,université de tunis-el-manar,bp 37, Tunisia, laboratoire des sciences de l'ingénieurpour i'environnement (lasie),fre 3474 cnrs,univ. la rochelle,bât. marie curie,av. michel crepeau, France, unité de recherche et ingénierie,enit,université de tunis-el-manar,bp 37, Tunisia
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Authors
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