Properties of structural steel treated in the ladle with liquid synthetic slag

On the probabilistic parameters of hardness in H-bands of structural steels

“…The probabilistic distributions of the values of the density in H-bands proper have virtually not been determined. As a rule, it is assumed that they are uniform or normal [4], though it has been shown graphically in [5,6] that the distributions should be more complex. It is interesting to refine them experimentally for a quantitative prediction of the correspondence between the hardness in critical cross sections of quenched parts and the specified requirements [7 -9].…”

“…Similar hardness distributions convenient for quantitative prediction of the hardenability of parts can be obtained with the help of curves of hardness variation in H-bands of the steels [5,6]. Files of the hardenability curves were used to determine the coefficients of regression and correlation between the hardness of the hardened steels and the content of the alloying components in them (c i , %).…”