In Engineering, What are the uses of alloys in daily life and how are alloys made?

The concept of Alloy is to put different metals together in specific percentage for a certain reason.

the most famous alloy is Stainless Steel. as it is made of Iron-Chromium-Nikel with a certain percentage to be a corrosion resistive alloy. It is used in alot of applications starting from Cutlery tools at home (Spoons, Forks, Knives) to pipes and machines inside factories.

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).

I agree with MR. SHAKEEL  and MR . HAZEM 

I can only agree with the given answers , thank you