Failure Analysis of Fe-1.1C-20Mn-2.5Cr-0.9Si-0.25Ti-1.0V-0.15Nb Lining Plant for Semi-self-grinding Machine
In order to find out the fracture cause of the high-manganese steel lining plate for ∅10.37m × 5.49 m semi-self-grinding machine for a mineral processing plant,the X-ray fluorescence spectrometer(XRF),scanning electron microscopy(SEM),electronic testing machine(AGS-X 100KNx)and other devices were used to analyze the chemical composition,microstructure and fracture morphology of the lining plate.The results showed that the main reasons for early fracture of the lining plate for semi-self-grinding machine were the looseness in the lining plate,and the large number of undissolved block carbides and network carbides at the grain boundary.
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