Precipitation Behavior of Large Primary Carbides in Cast H13 Steel

The large primary carbides precipitated during solidification can significantly reduce the performance of H13 steel. To better inhibit the formation of primary carbides, it is necessary to obtain the precipitation mechanism of primary carbides in H13 steel. First, an electronic probe microanalyzer (EPMA) is used to analyze the microsegregation of alloying elements in the last‐to‐solidify region. The enrichment of elemental V, Mo, Cr, and C in...