MODELING THE SURFACE MORPHOLOGY OF IRON UNDER THE INFLUENCE OF COMPRESSION PLASMA IMPULSE

Valiantsin V. Astashynski

doi:10.1615/HighTempMatProc.2016016940

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Editors-in-Chief: Valiantsin M. Astashynski (open in a new tab) Andrey V. Gusarov (open in a new tab)

Associate Editor: Nikolai N. Cherenda (open in a new tab)

Published 4 issues per year

ISSN Print: 1093-3611

ISSN Online: 1940-4360

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MODELING THE SURFACE MORPHOLOGY OF IRON UNDER THE INFLUENCE OF COMPRESSION PLASMA IMPULSE

Volume 19, Issue 3-4, 2015, pp. 307-317

DOI: 10.1615/HighTempMatProc.2016016940

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Valiantsin V. Astashynski
Research Laboratory, Department of Solid State Physics, Belarusian State University, 4 Nezavisimost Ave, Minsk, 220030, Belarus

ABSTRACT

A polygonal cellular structure with a typical cell size of about 400 nm appears on the surface of iron samples as a result of processing by compression plasma streams. Dendritic fission of the cells is observed at the critical value of the concentration of nitrogen impurity incorporated during the treatment. The formation of such structure takes place in the process of crystallization from a concentrated − supercooled melt. The calculated values of the rate of movement of a solid−melt interface are 0.2−0.5 m/s.

KEY WORDS: cellular structure, supercooled melt, temperature fields

CITED BY

Volokitin Gennadii G., Vlasov Viktor A., Skripnikova Nelly, Volokitin Oleg, Shekhovtsov Valentin, Plasma Technologies in Construction Industry, Key Engineering Materials, 781, 2018. Crossref

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