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Quenching Definition - Quenching is the soaking of a metal at a high temperature, above the recrystallization phase, followed by a rapid cooling... Quenching Definition - Quenching is the soaking of a metal at a high temperature, above the recrystallization phase, followed by a rapid cooling...
At any given temperature of quenching there is a certain amount of Martensite and the balance is untransformed Austenite. This untransformed Austenite is very brittle and can cause loss of strength or hardness, dimensional instability, or cracking. Quenches are usually done to room temperature.