Shimko V. Improvement of the modes of heat treatment of steels and cast-irons with the use of cooling in a friable graphite.

The goal - improvement of heat treatment of steels and cast iron cooling austenitizirovanyh products , including bulk silver graphite. Object - the processes of heat treatment of forgings and castings made of steel and cast iron . Item - structure formation during the heat treatment of low-alloy structural steels and cast iron cooling in the bulk silver graphite. Methods - metallographic , magnetic , X-ray , dyurometrichesky , thermal analysis . Novelty - kinetics of supercooled austenite transformation for the new roll of steel and for the first time for these steels are built C-diagram decomposition of austenite , for the first time , the possibility of formation of the required phase- structural state in steels and cast irons by using the heat of the phase transformation , discovered a secondary effect of speeding up the process of graphitization white alloyed cast iron by cooling with the austenitizing temperature in the bulk silver graphite , showing the possibility of ferrite grain size reduction and improvement in uniformity of the microstructure and mechanical properties of the cross-section of metal from steel . Purpose - improvement of heat treatment of steels and cast irons by examining the processes of structure formation during cooling austenition products. Object - the processes of heat treatment of forgings and castings made of steel and cast iron. The subject - structure formation during the heat treatment of low-alloy structural steels and cast iron cooling in the bulk silver graphite. Methods - metallographic, magnetic, XRD, dyurometric, thermal analysis. Novelty - kinetics of supercooled austenite transformation for the new roll of steel and for the first time for these steels are built C-diagram decomposition of austenite, for the first time, the possibility of formation of the required phase- structural state in steels and cast irons by using the heat of the phase transformation, discovered a secondary effect of speeding up the process of graphitization white alloyed cast iron by cooling with the austenitizing temperature in the bulk silver graphite, showing the possibility of ferrite grain size reduction and improvement in uniformity of the microstructure and mechanical properties of the cross-section of metal from steel .