Determine the corrosion rate ( mpy ) of steel corresponding to 1µA / cm? of current. Following is the composition of alloys. Cr = 21%, density = 7.1 g/ cm', At.wt. = 52.01 g /mol, number of electron = 1 Ni = 8%, density = 8.9 g/ cm', At.wt. = 58.68 g /mol, number of electron = 2 Fe = 70%, density = 7.86 g/ cm', At.wt. = 55.85 g /mol, number of electron = 2 Note : Faradays constant = 96500 coulombs per mole of electrons. C= constant which includes F and any other conversion factor for unites, for instance, C = 0.129 when corrosion rate is in mpy. Q11: Determine the corrosion rate ( mpy ) of steel corresponding to1µA / cm? of current. Following is the composition of alloys.Cr=21%, density = 7.1 g/ cm', At.wt. = 52.01 g /mol, numberof electron = 1Ni = 8%, density = 8.9 g/ cm', At.wt. = 58.68 g /mol, number ofelectron = 2Fe = 70%, density = 7.86 g/ cm', At.wt. = 55.85 g /mol, numberof electron = 2Note : Faradays constant = 96500 coulombs per mole of electrons.C = constant which includes F and any other conversion factor forunites, for instance,C = 0.129 when corrosion rate is in mpy.

The corrosion rate of the system in mpy for the given current density is calculated as shown in…

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ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

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Determine the corrosion rate ( mpy ) of steel corresponding to 1µA / cm? of current. Following is the composition of alloys. Cr = 21%, density = 7.1 g/ cm', At.wt. = 52.01 g /mol, number of electron = 1 Ni = 8%, density = 8.9 g/ cm', At.wt. = 58.68 g /mol, number of electron = 2 Fe = 70%, density = 7.86 g/ cm', At.wt. = 55.85 g /mol, number of electron = 2 Note : Faradays constant = 96500 coulombs per mole of electrons. C= constant which includes F and any other conversion factor for unites, for instance, C = 0.129 when corrosion rate is in mpy.

Q11: Determine the corrosion rate ( mpy ) of steel corresponding to
1µA / cm? of current. Following is the composition of alloys.
Cr=21%, density = 7.1 g/ cm', At.wt. = 52.01 g /mol, number
of electron = 1
Ni = 8%, density = 8.9 g/ cm', At.wt. = 58.68 g /mol, number of
electron = 2
Fe = 70%, density = 7.86 g/ cm', At.wt. = 55.85 g /mol, number
of electron = 2
Note : Faradays constant = 96500 coulombs per mole of electrons.
C = constant which includes F and any other conversion factor for
unites, for instance,
C = 0.129 when corrosion rate is in mpy.

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