Modification and Alloying Effects in Eurofer Steel Under Powerful Pulsed Plasma Impacts

Byrka, O.V.; Herashchenko, S.S.; Makhlai, V.А.; Aksenov, N.N.; Garkusha, I.E.; Marchenko, H.K.; Chunadra, А.G.; Sereda, K. N.; Malykhin, S.V.; Surovitskiy, S.V.

doi:10.46813/2021-134-191

Problems of Atomic Science and Technology 2021

DOI: 10.46813/2021-134-191

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Modification and Alloying Effects in Eurofer Steel Under Powerful Pulsed Plasma Impacts

O.V. Byrka¹,

S.S. Herashchenko²,

V.А. Makhlai³

et al.

Abstract: Experimental studies of surface modification of Eurofer samples have been performed with a quasi-stationary plasma accelerator QSPA Kh-50. The heat load on the surface was near the tungsten melting threshold (i.e. about 0.6 MJ/m2). The plasma streams exposures result in modification of steel-based materials and formation of cellular submicron structures in re-solidified layers. Phase characterized by body-centered cubic lattice appeared due to recrystallization of affected material.

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2023

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Features of Modifications in the Re-Solidified Surfaces of Advanced Materials Due to High-Power Plasma Pulses

Herashchenko,

Makhlai,

Garkusha

et al. 2023

Problems of Atomic Science and Technology

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The surface modification of advanced materials was studied through a series of repetitive plasma pulses caused tungsten melting. Features of the affected surface layers in reference materials (IGP W, AM W/WTa, Hastelloy, and EUROFER) for both fusion and fission applications were explored after exposure to plasma in the facilities (QSPA, MPC, and PPA) with different durations of plasma pulses. A detailed surface analysis was carried out with Scanning Electron Microscopy. It was found that the plasma treatment led to the formation of a modified layer as a result of the rapid re-solidification of the exposed surface. The fine cellular structures appeared in the re-solidified layers of the irradiated materials, with typical cell sizes ranging from 150 to 500 nm. An increase in the roughness of the exposed surfaces was attributed to the presence of the cracks and re-solidified layer.

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Features of Modifications in the Re-Solidified Surfaces of Advanced Materials Due to High-Power Plasma Pulses

Herashchenko,

Makhlai,

Garkusha

et al. 2023

Problems of Atomic Science and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

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Modification and Alloying Effects in Eurofer Steel Under Powerful Pulsed Plasma Impacts

Cited by 1 publication

References 11 publications

Features of Modifications in the Re-Solidified Surfaces of Advanced Materials Due to High-Power Plasma Pulses

Features of Modifications in the Re-Solidified Surfaces of Advanced Materials Due to High-Power Plasma Pulses

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