136) When a steel containing more than 0.8 percent carbon is cooled slowly below the lower critical pint, it consists of
Answer is:
pearlite and cementite
Related Engineering Materials MCQ with Answers
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
Answer is:
spherodising
Answer is: