21.SSC JE (ME)II Material Science Booster Quiz-3

‘Tempering’ of quenched martensite steel is necessary to improve the _________.

Which one of the following is the process to refine the grains of metal after it has been distorted by hammering or cold working?

The iron-carbon diagram and the TTT curves are determined under

All of the following statements about yield point phenomenon is true except

A test specimen is stressed slightly beyond the yield point and then unloaded. Its yield strength will

Steel can be hardened quickly by ______ process

Small percentage of boron is added to steel to

Under microscope Ferrite appears as _________.

_______ does not certain tin as an alloying element.

Which one of the following is correct for ‘Burgers vector’ in screw dislocation _________?