ON THE CENTERS OF CORROSION INITIATION IN STEEL SUBJECTED TO LASER ACTION
DOI:
https://doi.org/10.34185/1991-7848.itmm.2024.01.004Keywords:
Steel, non-metallic inclusions, laser processing, corrosion, inclusion-matrix boundaries, low-cycle durability.Abstract
The effect of laser action on the initiation and development 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 to 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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