Engineering Materials
In spheroidising process, the steel is

None of these
Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C
Heated up to the lower critical temperature and then cooled in still air
Heated below the lower critical temperature and then cooled slowly

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Cyaniding is the process of

Reacting steel surface with cyanide salts
Obtaining cyanide salts
Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness
Dipping steel in cyanide bath

ANSWER DOWNLOAD EXAMIANS APP