Metallurgical Principles and Practice of Engineering (PE) Study Guide: Question
#43
It Is the Policy of The Minerals, Metals & Materials Society (TMS) to Encourage the Professional Registration of Metallurgical Engineers.
Copper and steel panels are mistakenly joined together for an application exposed
on one side to alternative seawater immersion and marine atmosphere. The area
of the copper panel is 240 cm2 while the steel
panel area is 1350 cm2. The average current
density on the copper panel is 34 mA/cm2.
The average corrosion rate (mpy) of the steel panel is most nearly:
|
(A)
|
1.8
|
|
(B)
|
2.8
|
|
(C)
|
47
|
|
(D)
|
3,800
|
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