In order to determine the polarization resistance of a carbon steel in acidic solution, a potential is applied and the current measured. We obtain the following values E - Econx (mv) -15 i (mA cm-2) -8.5
In order to determine the polarization resistance of a carbon steel in acidic solution, a potential is applied and the current measured. We obtain the following values E - Econx (mv) -15 i (mA cm-2) -8.5
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![In order to determine the polarization resistance of a carbon steel in acidic solution, a potential is
applied and the current measured. We obtain the following values
E - Eco (mv)
-15
-10
-5
-2
0
2
5
10
15
i (mA cm-2)
-8.5
-6.0
-2.6
-1.0
0
1.1
2.8
5.0
9.0
The anodic and cathodic Tafel coeffic.nts are equal to: ßa = 30 mV, Bc = 50 mV.
Calculate (a) the polarization resistance at the corrosion potential and (b) the corrosion current
density.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F764ef46d-621b-4ea9-97da-613b27f34d99%2F5907bf54-b4a8-4f69-901b-8f9e445fc494%2Feb83v2f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In order to determine the polarization resistance of a carbon steel in acidic solution, a potential is
applied and the current measured. We obtain the following values
E - Eco (mv)
-15
-10
-5
-2
0
2
5
10
15
i (mA cm-2)
-8.5
-6.0
-2.6
-1.0
0
1.1
2.8
5.0
9.0
The anodic and cathodic Tafel coeffic.nts are equal to: ßa = 30 mV, Bc = 50 mV.
Calculate (a) the polarization resistance at the corrosion potential and (b) the corrosion current
density.
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