TY - GEN
T1 - Hierarchically organized structures formed during the deposition of a thin film of boron on the surface of high-chromium steel
AU - Ivanov, Yurii
AU - Shugurov, Vladimir
AU - Tolkachev, Oleg
AU - Teresov, Anton
N1 - Funding Information:
The study was supported by the Russian Science Foundation (project No. 19-19-00183).
Publisher Copyright:
© 2020 American Institute of Physics Inc.. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12/14
Y1 - 2020/12/14
N2 - In the scheme of plasma-assisted RF-sputtering of the cathode from boron powder, a mode is revealed and a film of boron with thickness up to 500 nm in amorphous state is formed on the surface of AISI 310S high-chromium steel. It is shown that deposition of boron film leads to formation of multiphase multilayer hierarchically subordinate nanocrystalline structure in surface layer of steel with thickness up to 700 nm. Hardness of modified layer exceeds hardness of initial steel by 1.2 times, and Young's modulus-by 1.4 times. It has been suggested that the increase in the hardness of the steel surface layer is due, firstly, to the action of the Orovan mechanism (strengthening with nano-sized particles of borides), secondly, to the Hall-Petch mechanism (strengthening with grain boundaries and sub-grains), thirdly, to the substructural strengthening caused by the formation of the dislocation structure, and fourthly, solid-solution hardening associated with the doping of the Ȗ-iron crystal lattice with boron atoms.
AB - In the scheme of plasma-assisted RF-sputtering of the cathode from boron powder, a mode is revealed and a film of boron with thickness up to 500 nm in amorphous state is formed on the surface of AISI 310S high-chromium steel. It is shown that deposition of boron film leads to formation of multiphase multilayer hierarchically subordinate nanocrystalline structure in surface layer of steel with thickness up to 700 nm. Hardness of modified layer exceeds hardness of initial steel by 1.2 times, and Young's modulus-by 1.4 times. It has been suggested that the increase in the hardness of the steel surface layer is due, firstly, to the action of the Orovan mechanism (strengthening with nano-sized particles of borides), secondly, to the Hall-Petch mechanism (strengthening with grain boundaries and sub-grains), thirdly, to the substructural strengthening caused by the formation of the dislocation structure, and fourthly, solid-solution hardening associated with the doping of the Ȗ-iron crystal lattice with boron atoms.
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U2 - 10.1063/5.0034230
DO - 10.1063/5.0034230
M3 - Conference contribution
AN - SCOPUS:85097982363
T3 - AIP Conference Proceedings
BT - Proceedings of the International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology
A2 - Panin, Victor E.
A2 - Fomin, Vasily M.
PB - American Institute of Physics Inc.
T2 - International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020
Y2 - 5 October 2020 through 9 October 2020
ER -