For each of the heat treatments and processes below, explain what the process is, how it affects the structure, properties and behaviour of the parent material.  A) solution heat treatment of Aluminium/ Copper alloys  B) chemical vapour deposition on semiconductor materials  C) Hot forging of steels

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Strengthening of Alloys

Strengthening of the alloys is required as metals become weak due to various lattice defects, metal bonding phenomena. The strength of the metals is not enough for any mechanical work. The internal dislocations of any metals arise due to forming processes. Due to the movement of these dislocations, the metals are plastically deformed.