Composite zones obtained in situ in steel casts of crushing mill beaters

The aim of the presented study was to obtain the element of a crushing mill beater reinforced with a composite zone, working under the conditions of high abrasive wear as well as high pressures. By means of the SHSB method, a local composite zone was created consisting of very hard titanium carbide - TiC. The moulded pieces prepared beforehand in the casting mould were filled with liquid metal, whose heat caused the initiation of an in situ reaction - the formation of titanium carbide. The cast obtained in this way was subjected to tests. An analysis of the physical composition was performed on an X-ray diffractometer - XRD. Additionally, investigations with the use of a scanning electron microscope SEM were carried out in order to determine the shape, size and distribution of TiC. As a result of the conducted research, a high quality material was obtained, which was in line with the authors’ expectations.

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