quenched the samples made of steel 42CrMo4
and AISI 4140 at 250–720 mm diameter interval, 1500–6000 mm
length interval and 1–20 tones
of weight interval in oil media, high
and low pressure air–water mixture media. For this purpose they
aimed to control the hardenability in steels with large diameters
and heavy masses. They determined that using intense air–watermixture for quenching would form hardenability in large steel
parts and that the cooling could be controlled using the air–water
mixture