Table 1 Degradation rate factor values of tensile mechanical properties of pre-corroded AA2024-T3 specimens for different artificial ageing conditions

From: Corrosion of aluminium alloy AA2024-Τ3 specimens subjected to different artificial ageing heat treatments

Equation of fitting curve

Artificial ageing condition

y = a + b*x

T3

AA2024-T3 + 2 h @ 190 °C (UA)

AA2024-T3 + 8 h @ 190 °C (PA)

AA2024-T3 + 63 h @ 190 °C (OA)

Degradation rate factor (Slope b) of Af [-]

−0.10377

−0.11804

−0.04281

−0.05438

Degradation rate factor (Slope b) of Rp0.2% [MPa]

−0.01159

−0.03996

−0.01869

−0.01394

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