Q. The effect of austenitic grain size development during heat treatment is (Solved)
1. lower hardenability
2. greater toughness
3. lower internal stress
4. All of the above
5. Low specific heat of quenching oil
- b. greater toughness
1. lower hardenability
2. greater toughness
3. lower internal stress
4. All of the above
5. Low specific heat of quenching oil