predict what happens in the field of domestic use of metals if alloys were not dicovered
Answers
The problem is that we all use metals at home and
in industries. The metals react quickly with Oxygen in (damp) air and form
oxides. That results in rusting. Due to rusting the outer layer of metal
comes off as powder.
Due to the corrosion, the objects lose good appearance and also
prevent their good use. That weakens the object too. Also more friction results
due to corrosion. So corrosion is bad for humans.
To prevent corrosion, alloys of metals are made and special heat
treatment is also done. Some oils, paints or chemicals are polished or applied on
metallic surfaces.
If we eat food that is stored in a rusted container, it is dangerous to
our health. So corrosion is not good for us. Alloys are fit for domestic
use, because they do not rust easily. Example is stainless steel.
Pure Metals are soft, malleable and
ductile. We want strong utensils and contains or plates. Thus alloys of
required strength and hardness and density are manufactured for different
purposes.