State two purposes of heat treatment.

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written 5.3 years ago by

teamques10 ★ 69k

modified 2.6 years ago by

pedsangini276 • 4.8k

material technology

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written 5.3 years ago by

teamques10 ★ 69k

• modified 5.3 years ago

Solution:

Purposes of Heat treatment: (Any two 1 mark each)

1) Improve machinability

2) Relieve the internal stresses

3) Improve mechanical properties such as ductility, strength, hardness, toughness, etc.

4) Change in grain size

5) Increase resistance to heat and corrosion

6) Modify electrical and magnetic properties.

7) Change in chemical composition

8) Remove gases

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