Q. In a specimen of hardened steel, hard and soft spots indicate (Solved)
1. Presence of pearlite
2. Fre carbon
3. Presence of cementite
4. Uneven heating
5. Non-uniform composition of steel
- d. Uneven heating
1. Presence of pearlite
2. Fre carbon
3. Presence of cementite
4. Uneven heating
5. Non-uniform composition of steel