On completion of heat treatment, the resultingstructure will have retained Austenite if(a) Rate of..

On completion of heat treatment, the resultingstructure will have retained Austenite if(a) Rate of cooling is greater than the critical coolingrate(b) Rate of cooling is less than the critical cooling rate(c) Martensite formation starting temperature isabove the room temperature(d) Martensite formation finish temperature is belowthe room temperature