The influence of eutectic-type inclusions on the red brittleness of steels

Keywords

steel, deformation, non-metallic inclusions, cracks, cavities, inclusion–matrix interphase boundaries, red brittleness.

Cite as

Gubenko S. I. and Parusov E. V. The influence of eutectic-type inclusions on the red brittleness of steels. Physicochemical Mechanics of Materials. 2022. 58(6), 039-047.

Abstract

The behavior of heterophase inclusions of the eutectic type (IET) is studied under different conditions of plastic deformation of industrial steels. It has been established that near inclusions of eutectics, having various types of microdamages, the cracks and cavities of deformation origin and cavities associated with their melting are formed. The melting temperatures of inclusions of different IET, as well as the temperature intervals for the formation of microdamages of various types during the deformation process, have been established. It is shown that the melting of eutectic inclusions causes a sharp growth of cracks and cavities at the initial stages of deformation, which contributes to the manifestation of red brittleness of steels.

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