SPRAY QUENCHING. A quenching process using spray nozzles to spray water or other liquids on a part. The quench rate is controlled by the velocity and volume of liquid per unit area per unit of time of impingement.
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WHITE LAYER. Compound layer that forms as a result of the nitriding process.
VACUUM DEPOSITION. Condensation of thin metal coatings on the cool surface of work in a vacuum.
TRANSGRANULAR FRACTURE. Fracture through or across the crystals or grains of a metal. Also called transcrystalline fracture or intracrystalline fracture.
SELECTIVE HEATING. Intentionally heating only certain portions of a workpiece.