Metals and alloys may not posses all properties required in a finished product. The metal properties can be controlled by following methods:
1. Alloying
2. Heat Treatment
3. Mechanical Working and Re-crystallization.
Behavior of metal when subjected to various types of stresses depends upon the following factors:
1. Magnitude of stress
2. Nature of stress
3. Method of application of stress
4. Time of application of stress
5. Temperature
6. Composition of metal
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