134) which one of the following sets of constituents is expected in equilibrium cooling of a hyper eutectoid steel from austenitic state?
Answer is:
Cementite and pearlite
Related Engineering Materials MCQ with Answers
Answer is:
ferrite and pearlite
Answer is:
pearlite and cementite
Answer is:
any one of these
Explanation:
Heat treatment process effect on material structure and grains.
Most carbon steels and carbon alloy steels can be heat treated for the purpose of improving mechanical properties such as tensile and yield strength.
This is accomplished due to the heat treatment fundamentally altering the microstructure of the steel.
Answer is:
all of the above
Explanation:
Normalizing of steel is done to
* refine the grain structure
* remove strains caused by cold working
* remove dislocations caused in the internal structure due to hot working
