20. What is the purpose of brine solution, water, oil and air used in heat treatment process?
Soaking
Quenching
Heating
Austenite
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Answer:
SOAKING
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In materials science, quenching is the rapid cooling of a workpiece in water, oil or air to obtain certain material properties. A type of heat treating, quenching prevents undesired low-temperature processes, such as phase transformations, from occurring.
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