Answer :
Alloying is not always done to produce a ‘superior’ material, but to produce materials having a
desired requirement in the industry or elsewhere. A classic case is of lead solder (containing
lead & tin), in which the melting point of the constituent elements are lowered, not necessarily a
desirable property.
Alloying can be carried out using hot press method (a sheet of material is sandwiched with
alloying material), rolling the heated base metal in a drum full of alloying metal powder, using
hot spraying, galvanizing (dipping the base in a molten solution of alloying material) etc.
Sometimes the alloying material is added in small proportions to the molten base metal (e.g., in
production of different types of steel).