STABILIZING TREATMENT. (1) Before finishing to final dimensions, repeatedly heating a ferrous or nonferrous part to or slightly above its normal operating temperature and then cooling to room temperature to ensure dimensional stability service. (2) Transforming retained austenite in quenched hardenable steels, usually cold treatment. (3) Heating a solution-treated stabilized grade of austenitic stainless steel to 879( to 900(C (1600( to 1650(F) to precipitate all carbon as TiC, NbC or TaC so that sensitization is avoided on subsequent exposure to elevated temperature.
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THERMAL STRESS. Stresses in metal resulting from non-uniform temperature distribution.
SEVERITY OF QUENCH. Ability of quenching medium to extract heat from a hot steel workpiece; expressed in terms of the H value.
SPHEROIDIZING. Heating and cooling to produce a spheroidal or globular form of carbide in steel. Spheroidizing methods frequently used are: 1. Prolonged holding […]
TEMPERING. Reheating quenched steel to a temperature below the critical range, followed by any desired rate of cooling. Tempering is done to relieve […]