Heat Treatments (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the primary purpose of annealing steel?
What is the primary purpose of annealing steel?
To soften the material
To what temperature should steel be heated during annealing?
To what temperature should steel be heated during annealing?
of melting temp
What is the purpose of the soaking step in annealing?
What is the purpose of the soaking step in annealing?
To spread heat evenly throughout
How should the steel be cooled during annealing?
How should the steel be cooled during annealing?
Extremely slowly in oven
What characteristic distinguishes annealing from other heat treatments?
What characteristic distinguishes annealing from other heat treatments?
Slow cooling rate
What is recrystallisation in annealing?
What is recrystallisation in annealing?
Formation of new grain structure
What type of grain structure results from annealing?
What type of grain structure results from annealing?
Large, unstressed grains
Which property does annealed steel exhibit?
Which property does annealed steel exhibit?
Soft and ductile
What is the main application of annealed steel?
What is the main application of annealed steel?
Cold working processes
Which is NOT a cold working process for annealed steel?
Which is NOT a cold working process for annealed steel?
Melting
Why does slow cooling allow grain growth during annealing?
Why does slow cooling allow grain growth during annealing?
It gives grains time to blend
What would happen if cold working was attempted on hard steel without annealing?
What would happen if cold working was attempted on hard steel without annealing?
Cracking or breaking