TY - JOUR
T1 - Magnetic field induced rest potential shift of metallic electrodes in nitric acid solution
AU - Rhen, F. M.F.
AU - Dunne, P.
AU - Coey, J. M.D.
N1 - Publisher Copyright:
© 2006 Latvijas Universitate.
PY - 2006
Y1 - 2006
N2 - We have investigated the field-induced rest potential shift of Cr, Mn, Fe, Co, Ni, Cu, Zn, Sn, Bi, and stainless steel in nitric acid solution. Anodic rest potential shifts of up to 4mV, 10mV, 35mV and 2.4mV were observed for Mn, Zn, Fe and Ni, respectively, with an applied field of 1.5T, whereas no shift was observed for Cr, Cu, Sn, Bi, or stainless steel. The absence of a field-induced rest potential shift for the latter metals is associated with passivation of the electrode. The magnetic driving force responsible for field-induced rest potential shift is the Lorentz force, which enhances the corrosion currents through magnetically-induced stirring on a ten micron length scale.
AB - We have investigated the field-induced rest potential shift of Cr, Mn, Fe, Co, Ni, Cu, Zn, Sn, Bi, and stainless steel in nitric acid solution. Anodic rest potential shifts of up to 4mV, 10mV, 35mV and 2.4mV were observed for Mn, Zn, Fe and Ni, respectively, with an applied field of 1.5T, whereas no shift was observed for Cr, Cu, Sn, Bi, or stainless steel. The absence of a field-induced rest potential shift for the latter metals is associated with passivation of the electrode. The magnetic driving force responsible for field-induced rest potential shift is the Lorentz force, which enhances the corrosion currents through magnetically-induced stirring on a ten micron length scale.
UR - http://www.scopus.com/inward/record.url?scp=85044647102&partnerID=8YFLogxK
U2 - 10.22364/mhd.42.4.6
DO - 10.22364/mhd.42.4.6
M3 - Article
AN - SCOPUS:85044647102
SN - 0024-998X
VL - 42
SP - 395
EP - 401
JO - Magnetohydrodynamics
JF - Magnetohydrodynamics
IS - 4
ER -