TRANSFORMATION HARDENING. Heat treatment comprising austenitization followed by cooling under conditions such that the austenite transforms more or less completely into martensite and possibly into bainite.
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SOAKING. Prolonged holding at a selected temperature to effect homogenization of structure or composition.
SEVERITY OF QUENCH. Ability of quenching medium to extract heat from a hot steel workpiece; expressed in terms of the H value.
STATISTICAL PROCESS CONTROL. The application of statistical techniques for measuring and analyzing the variation in processes.
SOLID SOLUTION. A single, solid, homogenous crystalline phase containing two or more chemical species.