One of the main purpose of heat treatment
A) to improve ductility and strength
B) to relieve internal stresses
C) to improve machinability
D) all of the above
Correct Answer:
Verified
Q12: Bainite phase is divided into two types-------and--------
A)upper
Q13: Martensite phase is obtain by
A)fast cooling or
Q14: The isothermal transformation diagram i.e. TTT diagrams
Q15: In the heat treatment cycle CCT means-------
A)coolest
Q16: Heat treatment can be defined as
A)heating the
Q18: one of the following is heat treatment
Q19: one of the following is a purpose
Q20: In anneling process the metal from high
Q21: one of the following cooling rate used
Q22: Which heat treatment process is carried out
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