engleski

An Application of JM® -test in Computer Simulation of Quenching of Cold Work Tool Steels

The modified Jominy-test was designed for prediction of hardenability of cold work tool steels and possibility of application of modified Jominy-test in computer simulation of quenching of cold work tool steels has been investigated. Because of high hardenability there are limits in application of original Jominy-specimen in simulation of quenching of steels. The performance of investigated modified Jominy-test in simulation of quenching of high-hardenability tool steels was estimated by comparison of cooling curves of modified Jominy-specimen (JM-specimen) and cylindrical specimen. Prediction of hardness distribution in quenched workpieces made of cold work tool steel X 210 Cr 12 based on modified Jominy-test has been done. The time of cooling, t8/5 relevant for results of quenching was predicted. Modified Jominy-test can be applied in simulation of quenching of steel with higher hardenability rather than original Jominy-test.

quenching; computer simulation; high-hardenability tool steels

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