Events1st Corrosion and Materials Degradation Web Conference
Event submissions
Published
with-doi10.3390/CMDWC2021-09927
This submission belongs to the session S1. Mechanism and Predictive/Deterministic Aspects of Corrosion of the event 1st Corrosion and Materials Degradation Web Conference
Published date
08 May, 2021
Citation
Nouha Loukil, Mongi Feki, Corrosion behavior of Zn-Mn alloys in 3% NaCl media, in Proceedings of 1st Corrosion and Materials Degradation Web Conference, 17 May–19 May 2021, MDPI: Basel, Switzerland, doi: 10.3390/CMDWC2021-09927
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Corrosion behavior of Zn-Mn alloys in 3% NaCl media

Nouha Loukil 1
Mongi Feki 2
1. NATIONAL SCHOOL OF ENGINEERING OF SFAX -Tunisia, Tunisia
2. NATIONAL SCHOOL OF ENGINEERING OF SFAX -Tunisia
Abstract

Corrosion behavior of Zn-Mn alloys was studied through polarization resistance test and electrochemical impedance spectroscopy in 3% NaCl solution. Compared to pure Zn, Zn-10.1%Zn coating exhibits high corrosion resistance. The evolution of Rp with the Mn content seems to be ascribed to two mechanisms of Zn-Mn deposits dissolution, leading to two surface states. The differentiation is linked to the absence or the presence of the corrosion products layer on Zn-Mn deposit surface. The Nyquist impedance plots shape depends on the Mn content. This shape difference reveals a difference in phenomena possible to occur at the deposit/corrosive environment interface

Keywords
Zn-Mn alloy/ corrosion behavior/ EIS
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