Q5: Give reason for the followings:1-Toughness is reducing when some alloy steels are tempered at 550-650°C.2-Sub-zero treatment is most extensively used for carburized steels, especially alloy steels.3-Recrystallization temperature increases with decreasing the percentage of prior cold work.4-There is a limit to the overall size of the part in conventional hardening process.5-The movement of the interface in the recrystallisation and grain growth are different.

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Q5: Give reason for the followings: 1-Toughness is reducing when some alloy steels are tempered at 550-650°C.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Q5: Give reason for the followings:
1-Toughness is reducing when some alloy steels are tempered at 550-650°C.
2-Sub-zero treatment is most extensively used for carburized steels, especially alloy steels.
3-Recrystallization temperature increases with decreasing the percentage of prior cold work.
4-There is a limit to the overall size of the part in conventional hardening process.
5-The movement of the interface in the recrystallisation and grain growth are different.

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