Research progress on influence and control of MnS inclusions on steel quality
Fine MnS inclusions in steel can significantly improve the cutting performance of steel,but MnS inclusions have good deformation properties and are easy to extend along the rolling direction into long strip inclusions with large aspect ratio,which will also deteriorate the mechanical properties of steel and large size MnS is also easy to become a crack source of corrosion.Controlling the formation of small,dispersed spherical or spindle MnS inclusions in steel is key to improving its machinability and guaranteeing its mechanical properties.The control of MnS inclusions in steel is a systematic project,involving the whole process of metallurgical process.The formation mechanism,influencing factors,and control measures of MnS inclusions in steel are systematically reviewed,which guides the control of MnS inclusions in high-quality steel,and provides the basis for reasonable process path selection and process measure regulation in the actual production process.
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