Keywords
apparent activation energy
corrosion and pitting potentials
corrosion rate
E-AlMgSi aluminum alloy (Aldrey)
NaCl electrolyte
oxidation rate
potentiostatic technique
thermal gravimetric method
Abstract
The effect of impurities on the electrical conductivity of aluminum has been studied in detail. The electrical conductivity of aluminum is 65.45% of that of copper. The tensile strength of aluminum wire is 150–170 MPa which, at equal conductivity, is about 65% of the strength of copper wire. This strength of aluminum wire is sufficient for bearing the wire’s own weight but may be too low in case of snow, ice or wind overloads.
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