Interrupted quenching,Interrupted quenching,Interrupted quenching,Interrupted quenchingInterrupted quenching refers to the rapid cooling of the metal from the austenitizing temperature to a point above the
Ms where it is held for a specified period of time, followed by cooling in air. There are three types of interrupted
quenching: austempering, marquenching (martempering), and isothermal quenching. The temperature at which the
quenching is interrupted, the length of time the steel is held at temperature, and the rate of cooling can vary depending on
the type of steel and workpiece thickness.
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