Final answer:
Intergranular corrosion weakens the structural integrity of aluminum alloy parts.
Step-by-step explanation:
Intergranular corrosion is a type of corrosion that occurs along the grain boundaries of a metal. In the case of aluminum alloy parts, intergranular corrosion can weaken the structural integrity of the parts. It occurs due to the reaction between the metal and the corrosive environment, causing localized corrosion and the formation of pits or cracks at the grain boundaries.
The effect of intergranular corrosion on aluminum alloy parts is:
- It weakens the structural integrity of the parts.