1.11 Aluminium
Aluminium is obtained from bauxite and is the second most
commonly used metal today after steel. Magnesium and
silicon are the main alloying components used in high-quality
aluminium alloys. These alloys form the basis of the extruded
sections, die-cast node joints and panels in aluminium.
1.11.1 Contact corrosion
When aluminium is in contact with oxygen in the air, a passivating
oxide layer is formed on its surface that protects the material
underneath from environmental factors. Consequently, an
unpainted aluminium component will not normally corrode.
However, if aluminium comes into contact with another metal
that is higher in the electromotive series than itself and an
electrolyte is present at this point, contact corrosion will occur.
Electromotive series:
• Zinc (Zn)
• Chromium (Cr)
• Iron (Fe)
• Tin (Sn)
• Lead (Pb)
• Aluminium (Al)
Since aluminium is usually lower in the electromotive series
and is the more common metal, it will decompose.
Copyright ©
2010
Summary of Contents for 458 Italia
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Page 522: ...Hook 95977564 AS 107564 for lifting the gearbox Page 5 of 5 Specific tooling and equipment ...
Page 586: ...In preparation Page 6 of 6 Engine overhaul Disassembly ...
Page 620: ...Perform the Fuel tank tightness test cycle Page 4 of 4 Fuel level sensor ...
Page 967: ...Refit the wheels D2 01 Page 10 of 10 Stabiliser bars Tie rods ...
Page 1127: ...Refit the wheels D2 01 Page 8 of 8 Wheelhouse ...
Page 1167: ...Prise out and remove the plug 4 Undo the nut 5 Undo the nut 6 Page 32 of 37 Doors ...
Page 1242: ...In the LOWEST position two movements are possible Page 8 of 12 Seats ...
Page 1243: ...In the INTERMEDIATE LOW position three movements are possible Page 9 of 12 Seats ...
Page 1244: ...In the INTERMEDIATE HIGH position three movements are possible Page 10 of 12 Seats ...
Page 1549: ...Reconnect the battery F2 01 Page 5 of 5 Starter motor ...
Page 1721: ...Charge the air conditioning system F5 12 Page 5 of 5 Condenser ...
Page 1740: ...Refit Page 13 of 13 A C unit ...
Page 1764: ...FD0001 Fuel supply distribution 0 99999 Page 10 of 56 PDF ...
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