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Author Question: When grinding hardened steel, two kinds of surface failures are: A) Decarburization and pitting ... (Read 60 times)

justinmsk

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on: Jul 26, 2018
When grinding hardened steel, two kinds of surface failures are:
 
  A) Decarburization and pitting
  B) Changes in hardness on the surface and internal stresses
  C) Porosity and discoloration from the quench medium
  D) None of the above

Question 2

Quench cracks may be caused by:
 
  A) Wrong selection of steel B) Time delay between quench and tempering
  C) Overheating D) All of the above


Qarqy

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Reply #1 on: Jul 26, 2018
Answer to Question 1

B

Answer to Question 2

D


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