Alloys Of Metals And Their Composition

1. Alloys Of Metals And Their
Composition
ANONYMOUS

2. What is an alloy?
 An alloy is a mixture of two or more metals, or a metal and a non-metal.
 At least one of the elements in an alloy is a metal.
 Examples include:
 Brass
 Steel
 Bronze
 Alloys are preferred to pure metals as, most of the time, they are harder and
stronger, more resistant to corrosion and have higher melting points.

3. Steel
 Pure iron is almost useless; it stretches easily as it is too soft and it also rusts very easily.
 But when about 0.5% of carbon is added, it results in an alloy; mild steel.
 Mild steel is harder and stronger than pure iron and it is used for buildings, ships, car bodies,
machinery, furniture, fencing and so much more.
 Mild steel is not the only useful alloy of iron.
 Stainless steel is also formed when nickel and chromium are added to iron.
 It is a hard, rustproof alloy that is used in the manufacturing of surgical instruments and
cutlery

4. Steel is used in the
manufacturing of
car’s chassis. Being
hard and strong, it
can handle all the
forces the car will
experience.

5. Stainless steel
is used in
surgical
instruments.
Since it is
rustproof, it
lowers the risk
of infections
during
surgeries.

6. Brass (Cu3Zn2)
 Brass is an alloy of copper and zinc.
 It is harder than both metals on their own.
 It is easy to shape and looks attractive and so is used in the making of
instruments such as trumpets, saxophones, trombones and even French horns.
 It also does not corrode. This paired with the fact that it looks attractive makes it
suitable for use in door handles and ornaments.

7. Brass is
used in the
making of
musical
instruments.

8. Due to its
aesthetic
properties, brass
is used in the
making of door
handles.

9. Bronze (CuSn)
 Bronze is an alloy of copper and tin.
 It is hard and resists corrosion and so is used in making coins, statues and
propellers for ships.
 It also has the ability to produce a ringing sound (sonorous) and so is used in
making bells.

10. Bronze is
used in
making
coins since
it it does not
corrode.

11. Bronze is used
in the making
of bells due to
its sonorous
qualities i.e the
ability to
produce
ringing sounds.

12. Aluminium Alloys
 Aluminium alloys are typically made of aluminium mixed with metals such as
zinc, magnesium and copper.
 It is light, very strong and does not corrode.
 Due to its properties, it is used in aircraft and spacecraft.

13. Aluminium
is used in
aircraft
since it is
light and
strong.

14. Aluminium
alloy’s
resistance to
high
temperatures
is the reason
it is widely
used in
spacecrafts.