Laboratory of Electrophysical and Electrochemical
Treatment of Materials ”Boris Lazarenko”

The Laboratory of Electrophysical and Electrochemical Treatment of Materials Boris Lazarenko was created in 2013 as a result of the merge of the Laboratory of Electrochemical Treatment of Materials and the Laboratory of Electroerrosive Methods of material Treatment and Antocorrosion Protection.

Fundamentals of innovative research into the field of electrochemical treatment of materials at the Institute of Applied Physics are connected with the name of its first director, a renown scientist, academician Boris Lazarenko (1910 – 1979). Those activities were followed and further developed by academician Yuri Petrov (1921-1990), the founder of the first-in-Moldova school of electrochemical technologies for materials treatment. The initial research and elaborations were connected with developing methods based on electrochemical dimensional treatment of metals and obtaining of wear-resistant galvanic coatings, mainly on the basis of iron group metals. At present the direction and the Laboratory is headed by corresponding member of the ASM, professor, doctor habilitate Alexandr Dikusar.

Head of laboratory:

    Ph.D. Sergiu Ivașcu
    cab. 140
    phone : + (373) 22
    fax : + (373) 22 738149

Laboratory Profile:

• Study of dependences of high rate anodic and cathodic processes that occur under stationary and nonstationary conditions of electrolysis; design of new technological processes of electrochemical formation of machine components;
• Investigations of dependences of electrochemical deposition of galvanic wear resistant coatings (iron, chromium, alloys) under stationary and nonstationary conditions of electrolysis; elaboration of technologies directed at hardening of machine components;
• Dimensional electrochemical micro- and nanotreatment to obtain nanomaterials (coatings, nanocomposites, nanowires, etc.), research into their properties, and working out methods of their usage.
• Studying the phenomena that accompany the discharge of electric discharges into the liquid and gas media; elaboration of new technological processes and improvement of existing ones.
• Study of formatioin particularities of the structures on the surface, of the anticorrosive and physico-mechanical properties of the restored parts, manufactured and hardened by the electro-physical-chemical methods.

Recent Achievements:

• General methods of calculation of the fields of rates, temperatures, concentrations and potentials have been developed for high rates of interphase exchange. Kinetic dependences of high-rate anode dissolution of various metals and alloys in the concentrated solutions of inorganic salts and alkalies adjusted to the conditions of electrochemical machining of metals have been investigated.
• The phenomenon of thermokinetic instability of superficial coating layers - sharp, non-stationary increase in rates of electrochemical processes under the mutual influence of heat generation and rates of reactions has been revealed and investigated. Mechanisms of the description of transition to instability depending on the nature of kinetic limits of electrode process rates have been proposed.
• Research into physical phenomena in an interelectrode gap and on the border of interphases has made it possible to prove the applications of pulse regimes in electrochemical treatment. New technological processes of electrochemical dimensional treatment of complex details profiles, stamps and compression forms, of artificial roughness creation on internal surfaces of pipes, of electrochemical grinding have been developed, etc.
• Specific dependences allowing to determine properties of coating on the basis of iron and its alloys during their deposition have been established. New technological processes of electrochemical hardening and reconditioning of machine components have been developed.
• Development of equipment for surface hardening of materials.

The laboratory possesses a range of performant/unique equipment and facilities, some of which are also available to non-IFA researchers. E.g:

• Potentiostat/galvanostat Autolab/PGSTAT302N

Team Select publications Research projects