ISSN 3041-1815. Physicochemical Mechanics of Materials. 2026.
Volume 62, Issue 3
Influence of laser processing of steels on the sizes of nonmetallic inclusions in a strenghened layer
Gubenko S. I. 
Z. I. Nekrasov Iron and Steel Institute of the National Academy of Sciences of Ukraine, Dnipro, Ukraine. (https://ror.org/03myw9d11)
Ukrainian State University of Science and Technology, Dnipro, Ukraine. (https://ror.org/052pe2w94)
Parusov E. V.
Z. I. Nekrasov Iron and Steel Institute of the National Academy of Sciences of Ukraine, Dnipro, Ukraine. (https://ror.org/03myw9d11)
Parusov O. V.
Z. I. Nekrasov Iron and Steel Institute of the National Academy of Sciences of Ukraine, Dnipro, Ukraine. (https://ror.org/03myw9d11)
Keywords
steel, laser processing, non-metallic inclusions, strengthening, saturation zones, melting, fragmentation, crushing of inclusions, “satellite” particles.
Cite as
Gubenko S. I., Parusov E. V., and Parusov O. V. Influence of laser processing of steels on the sizes of nonmetallic inclusions in a strenghened layer. Physicochemical Mechanics of Materials. 2026. 62(3), 141-146.
Abstract
Specific features of the influence of laser processing on the sizes and volume fraction of non-metallic inclusions of various types in the strengthened layer of steels are studied. Laser processing of steels allows us to reduce the average size of non-metallic inclusions and the contamination of steel with inclusions in the strengthened zone by 30–50%. For different types of inclusions and steels, parameters which characterize the average sizes of inclusions and their volume fraction in the strengthened layer depending on the laser exposure effect are determined. The mechanisms and features of the transformation of non-metallic inclu¬sions during laser exposure, which contribute to a reduction in their size (crushing during partial dissolution and melting, mechanical crushing of solid or liquid initial inclusions, formation of dispersed “satellite” particles in microcomposite saturation zones of the steel matrix near the initial inclusions) are discussed.