Abstract

Purpose. The possibility of increasing the mechanical properties of the investigated structural steels by using technologies including holding in ICIT, as well as heating to a typical temperature of austenitization before or after holding in ICIT is shown.
 Methods of research. Durometric, metallographic and X-ray research methods were used. The tensile properties and impact strength were determined. These properties were compared with those obtained for the studied steels after a typical heat treatment.
 Results. It is shown that the technologies of normalization and quenching with holding in ICIT, as well as heating before or after it to a typical austenitizing temperature increasing of the mechanical properties of the studied steels in comparison with theirs level after a typical heat treatment.
 Scientific novelty. Innovative technologies of normalization and quenching, which includs holding in ICIT, as well as heating before or after it to a typical austenitizing temperature, were used and showed their effectiveness.
 Practical value. The technologies of normalization and quenching, which includs holding in ICIT, as well as heating before or after it to the typical temperature of austenitization are proposed for practical application

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