TY - JOUR
T1 - Clarifying the dissolution mechanisms and electrochemistry of Mg2Si as a function of solution pH
AU - Gharbi, O.
AU - Birbilis, N.
N1 - Publisher Copyright:
© The Author(s) 2018.
PY - 2018
Y1 - 2018
N2 - The dissolution kinetics of magnesium silicide (Mg2Si) were investigated herein. The rationalization of Mg2Si electrochemistry is relevant in the context of several commercial aluminum alloys, magnesium alloys, and magnesium containing galvanising. The dissolution rates of Mg and Si were quantitatively measured, as a function of solution pH, using atomic emission spectroelectrochemistry (AESEC), providing previously unreported insights into the corrosion mechanism of Mg2Si. Results revealed pH dependent dissolution of Mg and Si, in addition to the prominent role of Si in the passivation of Mg2Si in slightly alkaline pH (8).
AB - The dissolution kinetics of magnesium silicide (Mg2Si) were investigated herein. The rationalization of Mg2Si electrochemistry is relevant in the context of several commercial aluminum alloys, magnesium alloys, and magnesium containing galvanising. The dissolution rates of Mg and Si were quantitatively measured, as a function of solution pH, using atomic emission spectroelectrochemistry (AESEC), providing previously unreported insights into the corrosion mechanism of Mg2Si. Results revealed pH dependent dissolution of Mg and Si, in addition to the prominent role of Si in the passivation of Mg2Si in slightly alkaline pH (8).
UR - http://www.scopus.com/inward/record.url?scp=85049248889&partnerID=8YFLogxK
U2 - 10.1149/2.1061809jes
DO - 10.1149/2.1061809jes
M3 - Article
SN - 0013-4651
VL - 165
SP - C497-C501
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 9
ER -