DISCOVERY AND INVESTIGATION ON (Mn,Fe)S SINGLE CRYSTAL IN CAST STEEL

Natural morphology of (Mn,Fe)S single crystal in ZG25 cast steel have been discovered and investigation using SEM505 scanning electron microscope. The face-centred cubic (Mn,Fe)S single crystal at equilibrium state is shown to be tetrakaidecahedron consisted of eight 111 planes and six 100 planes, and is a typical example of the Oh-m3m cubic crystal system. Infact, this may be first report on tetrakaidecahedron morphology of the (Mn,Fe)S single crystal in ZG25 cast steel.