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electrode potential

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940087
EISBN: 978-1-62708-302-7
... potentials vary as a function of current density or charge transfer in a given area. The chapter explains how to measure and plot electrode potentials and currents and how to interpret the resulting polarization curves. It also discusses the effects of concentration gradients, explaining how they cause...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910049
EISBN: 978-1-62708-250-1
...; corrosion Effect of concentration on equilibrium electrode potential Table 4 Effect of concentration on equilibrium electrode potential Ferrous ion reduction Ferrous ion + 2 electrons → iron Fe 2+ + 2 e − → Fe E = − 0.440 − 0.059 2 log ( 1 Fe 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940127
EISBN: 978-1-62708-302-7
.... It then presents a simple model of a galvanically coupled electrode, in which the metal is represented as an array of anode and cathode reaction surfaces. The chapter goes on to develop the related theory of mixed electrodes, showing how it can be used to predict corrosion rates based on measured potentials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940233
EISBN: 978-1-62708-302-7
... values for M, m, and ρ. This procedure assumes nonselective corrosion of the elemental constituents of the alloy. Fig. 6.13 Applied potential and resultant external current relative to the electrochemical impedance spectroscopy method Fig. 6.21 Two-electrode method Fig. 6.12...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940023
EISBN: 978-1-62708-302-7
...Standard aqueous half-cell potentials at 25 °C (also known as standard electrode, redox, or oxidation potentials, and as the standard emf series)<xref rid="t65940023-t1-tn1" ref-type="table-fn">(a)</xref> Table 2.1 Standard aqueous half-cell potentials at 25 °C (also known as standard...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030180
EISBN: 978-1-62708-282-2
... Fig. 1 Schematic of experimental apparatus used for anodic polarization studies. Current flow between the working electrode and the auxiliary electrode forces a shift in potential between the working electrode and the reference electrode. V, voltmeter. Source: Ref 23 Fig. 2...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730129
EISBN: 978-1-62708-283-9
... 12.1 Table 12.1 shows the electromotive series. It gives the electrode potentials for various possible half reactions for solutions with 1 molar concentration. Electromotive series Table 12.1 Electromotive series Anode half-cell reaction (the arrows are reversed for the cathode...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910427
EISBN: 978-1-62708-250-1
.... Suitable for measurements in liquid or vapor phase on most engineering metals and alloys. Probes, as well as portable and more expensive multichannel units, are available. Frequent Potential monitoring Potential change of monitored metal or alloy with respect to a reference electrode Measures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870161
EISBN: 978-1-62708-299-0
... … … 0.58 … 0.12 bal 0.55 Be 557–613 1035–1135 (a) Wrought alloy with composition identical to cast alloy C355.0. (b) Wrought alloy with composition identical to cast alloy A356.0. (c) Wrought alloy with composition identical to cast alloy A357.0 Electrode potential of aluminum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230459
EISBN: 978-1-62708-298-3
.... The significance of potential (electromotive force) as related to corrosion is discussed later in the chapter, but as used here refers to the electrode potential. The diagram represents the theoretical conditions of corrosion, immunity, and passivation of beryllium in the presence of solutions free from complexing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870025
EISBN: 978-1-62708-299-0
...Electromotive force series for metals Table 1 Electromotive force series for metals Electrode reaction Standard potential at 25 °C (77 °F), V vs. SHE Au 3+ + 3 e – → Au 1.50 Pd 2+ + 2 e – → Pd 0.987 Hg 2 + 2 e – → Hg 0.854 Ag + + e – → Ag 0.800 Hg...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910021
EISBN: 978-1-62708-250-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.9781627083027
EISBN: 978-1-62708-302-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610501
EISBN: 978-1-62708-303-4
... Platinum Cathodic end (least easily corroded) Source: Ref 4 Electromotive series Table 2 Electromotive series Electrode potential Standard electrode potential ( E 0 ), V Au +++ + 3 e - → Au +1.420 O 2 + 4H + + 4 e - → H 2 O +1.229 Pt ++ + 2 e - → Pt...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030082
EISBN: 978-1-62708-282-2
... was observed for alloys containing less than 60 at.% Ag. Source: Ref 26 Fig. 7 Current-potential behavior of the Ag 0.72 Au 0.28 alloy in various M AgClO 4 + 1 M HClO 4 . SHE, standard hydrogen electrode. Source: Ref 26 Fig. 8 Summary of critical potentials as a function...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240323
EISBN: 978-1-62708-251-8
... areas can be caused by inhomogeneities within a single piece of metal. Second phases in alloys are regions with an electrode potential different from that of the bulk metal and can therefore cause localized areas of corrosion. Other inhomogeneities include grain boundaries, segregation of impurities...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060369
EISBN: 978-1-62708-261-7
...) for iron in aqueous (water) solution Fig. 15.6 Corrosion characteristics of an active-passive metal as a function of solution oxidizing power (electrode potential) Fig. 15.1 The corrosion cycle of steel Fig. 15.7 Forms of corrosion Fig. 15.8 Breaks in mill scale (Fe...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910407
EISBN: 978-1-62708-250-1
... electrode). Other criteria applied to the protection of steel include the following: Maintain a minimum negative shift of 300 mV (0.3 V) from the freely corroding potential Provide a minimum 100 mV shift on the polarization decay when cathodic protection is removed Measure protective cathodic...