Magnetic testing of hardness of cast railcar steel 32D06D > after quenching and high-temperature tempering

摘要

The structure and strength and the magnetic properties of 32DX06JI steel subjected to quenching and tempering at different temperatures are studied. Based on statistical-modeling and experimental results, it has been established that coercive-return induction is a suitable parameter for controlling hardness. Another parameter, coercive force, can be used for estimating the phase composition of material. Local measurements of suggested testing parameters are possible with portable magnetic-measurement hardware-software systems of the SIMTEST-2 type.