The influence of laser treatment of steel surface on the initiation of corrosive damages near the non-metallic inclusions

Keywords

steel, non-metallic inclusions, laser treatment, corrosion, boundaries of inclusion–matrix, low-cycle durability.

Cite as

Gubenko S. I. The influence of laser treatment of steel surface on the initiation of corrosive damages near the non-metallic inclusions. Physico­chemical Mechanics of Materials. 2022. 58(2), 033-037.

Abstract

The effect of laser action on the initiation and propagation of corrosion damages in steels near non-metallic inclusions has been investigated. It has been established that laser treat­ment enhances the corrosion resistance in low-cycle fatigue of steels containing various inclusions. It is shown that the effect of laser treatment on increasing the resistance of steels against the formation of corrosion damages is associated with a change in the state of the inclusion-matrix interphase boundaries, which contributes to a decrease in their per­meability for corrosive elements and an increase in the cohesive strength of these boun­daries in active media.

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