Please use this identifier to cite or link to this item: https://essuir.sumdu.edu.ua/handle/123456789/83353
Or use following links to share this resource in social networks: Recommend this item
Title Assessment of Technological Capabilities for Forming Al-C-B System Coatings on Steel Surfaces by Electrospark Alloying Method
Authors Antoszewski, B.
Haponova, Oksana Petrivna  
Tarelnyk, V.B.
Myslyvchenko, O.M.
Kurp, P.
Zhylenko, T.I.
Konoplianchenko, I.
ORCID http://orcid.org/0000-0002-4866-0599
Keywords electrospark alloying
coatings
microhardness
continuity
roughness
structure
X-ray diffraction analysis
X-ray spectral analysis
Type Article
Date of Issue 2021
URI https://essuir.sumdu.edu.ua/handle/123456789/83353
Publisher MDPI
License Creative Commons Attribution 4.0 International License
Citation Antoszewski, B.; Gaponova, O.P.; Tarelnyk, V.B.; Myslyvchenko, O.M.; Kurp, P.; Zhylenko, T.I.; Konoplianchenko, I. Assessment of Technological Capabilities for Forming Al-C-B System Coatings on Steel Surfaces by Electrospark Alloying Method. Materials 2021, 14, 739. https://doi.org/10.3390/ma14040739
Abstract In this paper, the possibility of applying the electrospark alloying (ESA) method to obtain boron-containing coatings characterised by increased hardness and wear resistance is considered. A new method for producing such coatings is proposed. The method consists in applying grease containing aluminium powder and amorphous boron to the surface to be treated and subsequently processing the obtained surface using the ESA method by a graphite electrode. The microstructural analysis of the Al-C-B coatings on steel C40 showed that the surface layer consists of several zones, the number and parameters of which are determined by the energy conditions of the ESA process. Durametric studies showed that with an increase in the discharge energy influence, the microhardness values of both the upper strengthened layer and the diffusion zone increased to Wp = 0.13 J, Hµ = 6487 MPa, and Wp = 4.9 J, Hµ = 12350 MPa, respectively. The results of X-ray diffraction analysis indicate that at the discharge energies of 0.13 and 0.55 J, the phase composition of the coating is represented by solid solutions of body-centred cubic lattice (BCC) and face-centred cubic lattice (FCC). The coatings obtained at Wp = 4.9 J were characterised by the presence of intermetallics Fe4Al13 and borocementite Fe3 (CB) in addition to the solid solutions. The X-ray spectral analysis of the obtained coatings indicated that during the electrospark alloying process, the surface layers were saturated with aluminium, boron, and carbon. With increasing discharge energy, the diffusion zone increases; during the ESA process with the use of the discharge energy of 0.13 J for steel C40, the diffusion zone is 10–15 µm. When replacing a substrate made of steel C40 with the same one material but of steel C22, an increase in the thickness of the surface layer accompanied by a slight decrease in microhardness is observed as a result of processing with the use of the ESA method. There were simulated phase portraits of the Al-C-B coatings. It is shown that near the stationary points in the phase portraits, one can see either a slowing down of the evolution or a spiral twisting of the diffusion-process particle.
Appears in Collections: Наукові видання (ТеСЕТ)

Views

China China
-1143331912
Côte d’Ivoire Côte d’Ivoire
1
France France
1
Germany Germany
305122
Greece Greece
1
Ireland Ireland
305120
Lithuania Lithuania
1
Netherlands Netherlands
247
Singapore Singapore
1
Sweden Sweden
1233
Ukraine Ukraine
27624721
United Kingdom United Kingdom
11869471
United States United States
2048411860
Unknown Country Unknown Country
2048411859
Vietnam Vietnam
2467

Downloads

Austria Austria
1
Brazil Brazil
1
China China
-1143331913
Germany Germany
862
Ireland Ireland
1
Lithuania Lithuania
1
Netherlands Netherlands
249
Russia Russia
1
Singapore Singapore
1
Ukraine Ukraine
55249327
United Kingdom United Kingdom
11869466
United States United States
-1637706329
Vietnam Vietnam
1

Files

File Size Format Downloads
Antoszewski_et.al._electrospark_alloying_2021.pdf 4,71 MB Adobe PDF 1581048965

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.