A copper sheet with a total surface area of 8200 cm? is exposed to an aerated corrosive environment. A total of 6 rivets made of iron were inserted in the copper sheet, each rivet has a diameter of 20 mm. The corrosion rate of the uncoupled iron is 0.2 mm/y. a) What form of corrosion would you expect? b) Calculate the corrosion rate of the coupled iron rivets in mm/y. Has this value of corrosion rate been expected? Justify your answer
A copper sheet with a total surface area of 8200 cm? is exposed to an aerated corrosive environment. A total of 6 rivets made of iron were inserted in the copper sheet, each rivet has a diameter of 20 mm. The corrosion rate of the uncoupled iron is 0.2 mm/y. a) What form of corrosion would you expect? b) Calculate the corrosion rate of the coupled iron rivets in mm/y. Has this value of corrosion rate been expected? Justify your answer
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter3: The Structure Of Real Materials
Section: Chapter Questions
Problem 3.12P
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![A copper sheet with a total surface area of 8200 cm? is exposed to an aerated corrosive
environment. A total of 6 rivets made of iron were inserted in the copper sheet, each rivet has a
diameter of 20 mm. The corrosion rate of the uncoupled iron is 0.2 mm/y.
a) What form of corrosion would you expect?
b) Calculate the corrosion rate of the coupled iron rivets in mm/y. Has this value of corrosion
rate been expected? Justify your answer
c) If copper rivets, instead of iron, are inserted in an iron sheet, what is the corrosion rate of
iron? Comment and compare this result with the answer in (b)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2a5c4693-f755-44d8-9747-97d4afa2c69e%2F0c951861-5702-4c4f-8789-f17d616c8904%2Fbdckx3f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A copper sheet with a total surface area of 8200 cm? is exposed to an aerated corrosive
environment. A total of 6 rivets made of iron were inserted in the copper sheet, each rivet has a
diameter of 20 mm. The corrosion rate of the uncoupled iron is 0.2 mm/y.
a) What form of corrosion would you expect?
b) Calculate the corrosion rate of the coupled iron rivets in mm/y. Has this value of corrosion
rate been expected? Justify your answer
c) If copper rivets, instead of iron, are inserted in an iron sheet, what is the corrosion rate of
iron? Comment and compare this result with the answer in (b)
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