On Application of Carbon-Containing Electrode Materials in Technology of Electrospark Alloying: Part 1. Peculiarities of Coating Formation Using Electrospark Treatment of Titanium Alloy OT4-1

• Published in: Surface engineering and applied electrochemistry Vol. 54; no. 5; pp. 437 - 445
• Main Authors: Kudryashov, A. E., Eremeeva, Zh. V., Levashov, E. A., Lopatin, V. Yu, Sevost’yanova, A. V., Zamulaeva, E. I.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.09.2018; Springer Nature B.V
• Subjects: Carbon; Coated electrodes; Coatings; Composite materials; Electrode materials; Electrodes; Engineering; Erosion mechanisms; Erosion resistance; Machines; Manufacturing; Mass transfer; Phase composition; Processes; Statistical methods; Titanium alloys; Titanium base alloys; self-propagating high-temperature synthesis; pulse discharge; coating; electrode material; carbon-containing materials; electrospark alloying
• ISSN: 1068-3755; 1934-8002
• DOI: 10.3103/S1068375518050083

Electrospark treatment of OT4-1 titanium alloy was performed sequentially with a STIM-20N hard-alloy electrode (TiC–20% Ni) and carbon-containing material (graphite and carbon-based composite materials). Kinetics of the mass transfer of the hard-alloy electrode was studied. The cathode mass loss during the first minute of the treatment was established. The kinetics results were processed using the methods of mathematical statistics. The erosion resistance of the applied carbon-containing materials was determined. Phase composition and relief of the coatings formed were analyzed. It was found that the application of the carbon-containing material increases the content of refractory phases in the coatings. Increase in the time of the treatment using the carbon-containing materials decreases the roughness of the coatings.