Delay in quenching after solution heat treatment can lead to what type of corrosion?

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Multiple Choice

Delay in quenching after solution heat treatment can lead to what type of corrosion?

Explanation:
Delaying quench after solution heat treatment allows precipitates to form at grain boundaries, a process known as sensitization. Those boundary precipitates deplete the surrounding areas of elements that protect against corrosion, creating a continuous path along the grain boundaries for attack. This leads to intergranular corrosion, which is distinct from pitting (localized spots), uniform corrosion (even overall attack), or crevice corrosion (restricted spaces). So, the delayed quench specifically promotes intergranular attack.

Delaying quench after solution heat treatment allows precipitates to form at grain boundaries, a process known as sensitization. Those boundary precipitates deplete the surrounding areas of elements that protect against corrosion, creating a continuous path along the grain boundaries for attack. This leads to intergranular corrosion, which is distinct from pitting (localized spots), uniform corrosion (even overall attack), or crevice corrosion (restricted spaces). So, the delayed quench specifically promotes intergranular attack.

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