TEMPERING. Reheating quenched steel to a temperature below the critical range, followed by any desired rate of cooling. Tempering is done to relieve quenching stresses, or to develop desired strength characteristics.
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STRESS RELIEVING. Heating to a suitable temperature, holding long enough to reduce residual stresses and then cooling slowly to minimize the development of […]
SUBCRITICAL ANNEALING. A process anneal performed on ferrous alloys at a temperature below Ac1.
SECONDARY HARDNESS. The higher hardness developed by certain alloy steels when they are cooled from a tempering operation. This should always be followed […]
WATER QUENCHING. A quench in which water is the quenching medium. The major disadvantage of water quenching is its poor efficiency at the […]