Publication detail

Pulse-Driven Surface Hardening and Advanced Electrospark Alloying for Maritime Applications

MELNYK, O. ONISHCHENKO, O. KURDIUK, S. BULGAKOV, M. FOMIN, O. PÍŠTĚK, V. KUČERA, P.

English title

Pulse-Driven Surface Hardening and Advanced Electrospark Alloying for Maritime Applications

Type

WoS Article

Language

en

Original abstract

This study examines advanced electrospark alloying (ESA) as a pulse-driven surface hardening technique for marine engineering components operating in corrosive and abrasive environments. Coatings were deposited using cobalt-based (Stellite 6), nickel-based (NiCrBSi), titanium-based (VT1-0), and boron-based (B4C) electrodes, with pulse energies of 0.2–0.5 J, discharge frequencies of 100–200 Hz, electrode feed rates of 5–8 mm/min, applied loads of 15–20 N, and treatment durations of 40–60 s. The effects of processing parameters on coating microstructure, adhesion strength, microhardness, corrosion resistance, and wear behaviour were systematically evaluated. ESA treatments increased microhardness by 35–48% and adhesion strength by 22–30%, while reducing the corrosion rate from 0.043 mm/year to 0.025–0.027 mm/year and lowering wear volume loss by 40–47%. Compared with high-velocity oxy-fuel (HVOF) spraying and laser hardening, ESA achieved 37–58% lower energy consumption and 40–70% lower CO₂ emissions. These findings highlight ESA as an energy-efficient and environmentally sustainable option for on-site maintenance and modernisation of maritime equipment.

Keywords in English

maritime transport; marine engineering; equipment modernisation; on-site maintenance; electrospark alloying; marine components; wear-resistant coatings; corrosion resistance; pulse parameters; structural steel; adhesion; localised heating; ship repair; sustainable shipping

Released

2025-08-26

Volume

13

Number

9

Pages from–to

1–25

Pages count

25

BIBTEX


@article{BUT198583,
  author="Oleksiy {Melnyk} and Oleg {Onishchenko} and Sergiy {Kurdiuk} and Mykola {Bulgakov} and Oleksij {Fomin} and Václav {Píštěk} and Pavel {Kučera}",
  title="Pulse-Driven Surface Hardening and Advanced Electrospark Alloying for Maritime Applications",
  journal="Journal of Marine Science and Engineering",
  year="2025",
  volume="13",
  number="9",
  pages="1--25",
  doi="10.3390/jmse13091624",
  url="https://www.mdpi.com/2077-1312/13/9/1624"
}