In this paper, the distribution of C and Cr in the microsegregation of Fe-1C-1.42Cr-bearing steel was measured by experimental and numerical simulation methods. Melting points of the low-melting zones were calculated with the Thermo-Calc system; and then the verifications were made by heat treatment experiments and the temperature and time required for the bulk carbide dissolution process of bearing steel were tested. Bulk carbides could be dissolved by soaking for 60 minutes above 1260°C.
K E Y W O R D Scarbide dissolution, macrosegregation, soaking, Thermo-Calc