Materials Science. Non-Equilibrium Phase Transformations.
Vol. 7 (2021), Issue 1, pg(s) 6-10

Phase transformations in non-metallic inclusions under laser action

  • 1 National Metallurgical academy of Ukraine, Dnepropetrovsk, Ukraine

Abstract

It was found that in the process of pulsed laser action, various phase and structural transformations occur in non -metallic inclusions, which take place under nonequilibrium conditions. It is shown that the melting of inclusions under laser action is corresponded with change of their structure and phase composition. Also it is shown that the nature of these transformations depends on the type of nonmetallic inclusion. It was found that nonequilibrium phase transformations contribute to a change in the structure, phase composition, properties and sizes of nonmetallic inclusions, as well as the inclusion-matrix interphase boundaries of steel. It is shown that changes in the structure and properties of non-metallic inclusions affect their behavior and the formation of defects in the laser-strengthened layer of steel
products.

Keywords

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