Abstract
1. The structural components of the carburized case and the core are finer after quenching in a fluidized bed than after quenching in oil. 2. The hardness of carburized samples is 1–2 HRC units higher after quenching in a fluidized bed than after quenching in oil. The hardness of the cores is the same after quenching in both media (HRC 38-40). 3. The ultimate tensile strength, elongation, reduction in cross sectional area, and toughness are higher after quenching in a fluidized bed than after quenching in oil. 4. A fluidized bed can be used for quenching carburized parts of steels 18Kh2N4VA and 20Kh2N4A.
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