The scientific school was founded at Kyiv Polytechnic Institute in 1964 by Professor Volodymyr Kovalenko with the beginning of the first researches of laser technology in Ukraine.

Scientific direction: Technical Sciences

Field of knowledge: 13 - Mechanical Engineering; 18- Production and Technologies;

Scientific specialty: 05.03.07 -- Processes of physical and technical processing

Educational specialty: 131 Applied mechanics

Educational and educational-scientific training programs for bachelors and masters: Engineering of welding, laser and related technologies

Certificate training program for bachelors and masters: Laser Technics and Computer-Assisted Advanced Material Processing;

PhD - 131 Applied Mechanics

Scientific research in the field of laser technology was first started in Ukraine in 1964 at the Technology of Mechanical Engineering Department of KPI on the initiative of Prof. S.O. Kartavov. The further development of these studies was greatly facilitated by the Corresponding Member ща NASU prof. P.R. Rodin. Subsequently, an academic school of laser technology "Processes of interaction of high-energy flows with matter, non-traditional materials processing technologies" was established at KPI. by V. Kovalenko.  The scientific school was founded in 1964 at KPI with the beginning  of the first research on laser technology in Ukraine and the former USSR.

Among the members of the Scientific School are 6 doctors of technical sciences, and prof. Valery Kotlyarov was awarded the prize of the Council of Ministers of the USSR, Ph.D. Mykola Anyakin was awarded the "Order of Friendship of the Western Lake" (PRC)

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Development of the scientific school:

Quantitative and qualification composition:

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Key achievements of the Scientific School

During 1964-1991, research (under the leadership of Volodymyr Kovalenko) in the field of laser technology was conducted in a number of directions:

• precision machining (starting from 1972, the research was started by Valery Kotlyarov, later Doctor of Technical Sciences, Prof.)
• Laser hardening, alloying and surfacing (starting from 1973, the research was started by Volodymyr Volgin, currently Ph.D., chief specialist of ZIL; starting from 1975, research was started by Leonid Golovko, later Doctor of Technical Sciences, Prof.)
• Combined (hybrid) processing (work started in 1973 by student Volodymyr Dyatl, later Ph.D.)
• Everyone in the group was busy creating equipment and various devices for implementing the developed technological processes.

During the specified period of development (1964-1991), the developments of the scientific school were noted:

• awards of the Ministry of Higher Education of Ukraine in 1981 and 1982,
• Diplomas of the VDNG of the Ukrainian SSR in 1983,
• gold and silver medals of the VDNG of the USSR in 1986 and 1987,
• bronze medal of the VDNG of the Ukrainian SSR in 1985,
• awards of NTUU "KPI"

Moreover, in a number of directions, scientific research (application of focused laser radiation as a tool for materials processing) was conducted among the first in the world:

• modifications of the surface of the metal-cutting tool were noted in 1982. State prize of the Ukrainian SSR
• processing of natural diamonds were noted in 1990. Prize of the Council of Ministers of the USSR

It should be especially noted that KPI scientists, headed by Volodymyr Kovalenko, created and published the world's 1st handbook on laser processing of materials: Handbook of laser processing technology, V.S. Kovalenko, V.P. Kotlyarov, V.P. Dyatel, L.F. Golovko, V.V. Romanenko; Under the general editorship of V.S. Kovalenko, "Technique". Kyiv, 1985, 165 p.

Currently, the world recognition of Volodymyr Kovalenko's scientific school is taking place.

So the laboratory of laser processing of materials was visited by prof. Steen (Cambridge, Great Britain) is a talented scientist, the founder of the School of Laser Processing of Materials at the University of Cambridge, Great Britain. At the same time, developments that were carried out under the leadership of Volodymyr Kovalenko:

• The technology of laser strengthening of engine and rotor pump parts was introduced (1989)
• Devices for measuring the absorption capacity of materials (1990) were introduced (1989)

were implemented at enterprises of the GDR and Poland (responsible executor of works Leonid Golovko )

Further development of research (in the field of laser technology and technology) took place after the independence of Ukraine, and a number of studies conducted by the scientific school of Volodymyr Kovalenko were among the first in the world.

Thus, in 1996, together with the scientists of the R&D Research Institute of PM "Rytm" , process modeling was carried out and the possibility of dissimilation of the pipes of the bubbler hall 4 of the ChNPP power unit was investigated. At the same time, a working model of the equipment was created as part of a robot-cutter, on the moving carriage of which a laser cutter was installed, the radiation of which was transmitted through an optical fiber. Scientific supervisor of the work prof. Volodymyr Kovalenko (as a UN expert from Ukraine) took part in the 52nd Session of the UN General Assembly, where the issue of international support for a number of measures related to the liquidation of the consequences of the Chernobyl disaster was considered ("The Opportunities to Use Laser Technology in the Object "Shelter" of the Chernobyl Atomic Station" (with V.S. Kovalenko, Y.N. Karpachyov), "Proceedings of International Congress "ICALEO'97", San Diego, USA, Nov. 1997, ppE53-E58, "Robotized Laser Technology - Solution for the Problem of Destroyed Reactor Dismantling at Chernobyl Atomic Station" (with V.S. Kovalenko, Y.N. Karpachyov), "Proceedings of 12th International Symposium for Electromachining (ISEM-XII)", Aachen, May 11-13, 1998, VDI Verlag GmbH. Dusseldorf, 1998, pp613-622).

Починаючи з 2006 проводяться дослідження по створенню нового покоління метало ріжучого інструменту, ріжучий шар якого (алмази, кубічний нітрид бору) «вкарбований» в тіло інструмента сфокусованим лазерним випромінюванням («New development in laser sintering of diamond disk» (V.Kovalenko, L.Golovko,J.Meiger) Proceedings 57th CIRP General Assembly, August 19-25, 2007, Dresden, Germeny).

Since 2006, research has been conducted on the creation of a new generation of metal cutting tools, the cutting layer of which (diamonds, cubic boron nitride) is "etched" into the body of the tool by focused laser radiation ( "New development in laser sintering of diamond disk" (V. Kovalenko, L. Golovko, J. Meiger) Proceedings 57th CIRP General Assembly, August 19-25, 2007, Dresden, Germany).

In 2008, the possibility of manufacturing medical endoprostheses by laser milling was proposed and investigated  ( "Some results of studying laser micromachining at medical stents manufacturing" (V. Kovalenko, J. Meijer, R. Zhuk, P. Kondrashev, O. Stepura) "Proceeding 6th International Symposium on Nanomanufacturing (ISNM 2008), Aphene, Greece, )//International Journal of Nanomanufacturing (IJNM) ISSN (Online): 1746-9406 - ISSN (Print): 1746-9392)

It should be especially noted that the scientists of the school "Processes and equipment for the physical and technical processing of materials with highly concentrated energy sources" (Volodymyr Kovalenko and Leonid Golovko), the only scientists from the former USSR, were involved in the creation of the world-famous handbook on laser processing of materials "LIA Handbook on Laser Materials Processing" / [John f. Ready, VSKovalenko, LFGolovko] - Ed. in Chief: John f. Ready - Laser Institute of America, Magnolia Publishing, Inc., 2001 - 715 p.

In addition to the implementation of planned scientific works financed by the Ministry of Education and Culture of Ukraine and the implementation of a number of economic contracts, the scientists of the school of Prof. Volodymyr Kovalenko, for conducting research, funds from international grants were actively attracted. Thus, during 2001 - 2006, scientists received a number of research grants from the Ukrainian Science and Technology Center:

№2379 "Laser 3-dimensional production of prototypes from metal and ceramic materials" ;

No. 3350 "Development and manufacture of medical stents of new designs using laser radiation" ,

with a total cost of more than 400,000 USD.

Also, scientific school of Volodymyr Kovalenko (during 2013-2017) received grants for research in the field of laser technologies (Zhenzian Technical University, PRC ) with a total value of more than 150 thousand USD.

In general, in 1993, the election of Prof. Kovalenko Distinguished Visiting Professor at Ohio State University (USA), as well as an Honorary Member of the Laser Institute of America (LIA), a member of the Canadian Association of Industrial Lasers, a member of the international professional societies IEEE, LEOS, Deputy Chairman of the Laser Association of the former USSR (LAS) , Honorary Professor of the Kharkiv National Technical University, Member of the Committee of Advisors of the American Biographical Institute. In 1998, in connection with the celebration of the 100th anniversary of the founding of the KPI, Prof. Kovalenko was awarded the title of "Honorary Professor of the KPI", and at the end In 1998, he was elected a corresponding member of the International Mechanical Engineering Institute, the most prestigious professional organization in the field of mechanical engineering and instrumentation in the world awarding of Ph.D. degree (Doctor of Philosophy), as well as a master's degree at McMaster University (Canada), Osaka University (Japan), Jena University (Germany), as well as a member of the specialized council for the defense of doctoral theses at the Tula Polytechnic Institute (Russia) . Since 1998, Prof. Kovalenko BC is also a member of the Publishing Board of the international journal "Journal of Laser Applications" (USA).

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In recent years, scientists of the Volodymyr Kovalenko School have conducted a number of original studies in the field of laser technology and technologies.

For example, thanks to the received grants of the People's Republic of China, research was carried out on the formation of gas-powder mixture flows (which is delivered to the area of ​​focus of laser radiation) for the implementation of the technology of rapid production of products by the method of Direct Laser Melting, and the technology of recovery (by the method of laser gas powder surfacing) of the most important parts of mechanisms and machines. In the course of the work, optimal designs of systems for supplying gas-powder mixture flows into the zone of action of focused laser radiation were established, the use of which ensures an almost 3-fold increase in the productivity and quality of gas laser surfacing operations.

In the course of research works (topics 2018p, 2028p) it was established that the technology of laser molding of products (controlled laser bending) is suitable for forming pre-hardened samples from high carbon and manganese steels, and the formation of products after heat treatment allows to avoid the need to edit parts, which is necessary if heat treatment is carried out after their formation.

Also (in the course of work on the creation of bimetallic materials) a new highly efficient method of manufacturing bimetallic sheets was developed and the thermal processes occurring in the surface layer of one of the components of the bimetal made of 40X13 steel were analyzed. The conditions for the formation of a molten layer of St. 3 steel of specified dimensions (thickness and width) are established (with laser irradiation). This allows you to reasonably approach the definition of parameters that allow you to manage the process of manufacturing bimetals to a certain extent and to achieve an increase in the productivity of the process of manufacturing bimetallic products, depending on their functional purpose, with a decrease in its cost price.

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Until the last days of his life, Prof. Kovalenko was an Honorary Member of the Laser Institute of America (LIA), a member of the Canadian Association of Industrial Lasers, a member of the international professional societies IEEE, LEOS. Corresponding member of the International Institute of Mechanical Engineering with headquarters in Paris and member of the Editorial Board of the international journal "Journal of Laser Applications" (USA)

In addition, Dr. M. Anyakin, Prof. V. Kovalenko, Senior Lecturer R. Zhuk became experts of the international program of the People's Republic of China "Project 111" and members of the "Digital Economy" Union of the People's Republic of China

In recent years, 2 grants were received for research on the People's Republic of China:

• "Cooperative Research and Development Agreement" No. 2 dated June 9, 2016
• "Cooperative Development and Research Agreement" No. 3 dated November 14, 2017

and the signed and executed contract No. D/0201.01/7000.02/8/2021/ "Development of a system for the restoration of parts of mechanisms and machines" dated 12/31/2020 with Chongqing Gonggangzhihui Additive Manufacturing Technology Research Institute

A MEMORANDUM OF MUTUAL UNDERSTANDING between Zhenjiang University of Technology and Igor Sikorskyi KPI was approved

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In recent years, several scientific articles have been published, the most notable of which are:

1. O. Goncharuk, R.O. Zhuk, O.D. Kaglyak, V.V. Dzhemelinskyi, D.A. Lesyk Laser sintering of abrasive layers with inclusions of cubic boron nitride grains Lasers in Manufacturing and Materials Processing 2018, Vol. 5., p. 298…316 (DOI: 10.1007/s40516-018-0068-0)
2. Golovko, S. Salii, M. Bloshchytsyn,W. Alnusirat Development of the laserfoundry process for manufacture of bymetalls Eastern-European Journal of Enterprise Technologies № 4/1 ( 94 )  p.47 – 54
3. Kotlyarov V.P., Kiyaschenco O.M. Simplified Methodology for the Design of Technological providing for Operations of Laser Treatment. Surface Engineering and Applied Electrochemistry, 2019, Vol. 55, No. 6, pp. 692 - 717. © Allerton Press, Inc., 2019 ISSN 1068-3755,.
4. Zhang, J., Zhang, Q., Chen, Z., Li, D., Tong, W., Yao, J., Kovalenko, V Experimental and statistical analyses of geometry characteristics of Inconel 718 laser clad layer with response surface methodology Journal of Laser Applications31 (3) (2019) art. no. 032016 DOI: 10.2351/1.5098044
5. Chen, Y., Zhang, Q., Chen, Z., Wang, L., Yao, J., Kovalenko, V.Study on the element segregation and Laves phase formation in the carbon nanotubes reinforced IN718 superalloy by laser cladding Powder Technology 355 (2019) , pp. 163-171. DOI: 10.1016/j.powtec.2019.07.063
6. Ye, Z., Fang, Z., Yang, G., Zhang, Q., Volodymyr, Kovalenko., Yao, J.Influence of Gas Flow on Oxidation of Molten Pool During Laser Remelting Under Open-air Condition [开放条件下气流对激光重熔过程中氧化行为的影响] Zhongguo Biaomian Gongcheng/China Surface Engineering 2019, 32 (1), pp. 108-116. DOI: 10.11933/j.issn.1007-9289.20180918001
7. Gas-powder laser cladding with slot nozzles (with Ruslan Zhuk, Zhijun Chen, Jianhua Yao) The International Journal of Advanced Manufacturing Technology. 108, pages1163–1171(2020) https://doi.org/10.1007/s00170-019-04600-6
8. Zhang, J., Zhang, Q., Zhuang, Y., Kovalenko, V., Yao, J. Microstructures and cyclic hot corrosion behavior of laser deposited Inconel 718 alloy under different heat treatment conditions Optics and Laser Technology, 2020 DOI: 10.1016/j.optlastec.2020.106659
9. Li, Z.-X. Tong, B.-Q. Zhang, Q.-L. Yao, J.-H. Kovalenko, V. Influence of initial microstructure on the microstructure evolution and mechanical properties of 1.0C-1.5Cr steel in the laser surface quenching          Materials Science and Engineering A Volume 788, 24 June 2020 DOI: 10.1016/j.msea.2020.139490
10. Li ZX., Tong BQ., Zhang QL., Yao,JH., Kovalenko V. Microstructure refinement and properties of 1.0C-1.5Cr steel in a duplex treatment combining double quenching and laser surface quenching    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING           Volume: 776  Article Number: 138994  DOI: 10.1016/j.msea.2020.138994  Published: MAR 3 2020  Accession Number: WOS:000517665100005

As part of the implementation of contract No. D/0201.01/7000.02/8/2021/, in 2021 Igor Sikorsky Kyiv Polytechnic Institute together with Chongqing Gonggangzhihui Additive Manufacturing Technology Research Institute (PRC) applied for an international patent - LASER CLADDING APPARATUS: The present invention relates to mechanical engineering, particularly to technological laser equipment for gas-powder laser cladding and surface restoration and it could be used for the manufacturing of parts by means of additive manufacturing and restoration of faulty parts to their initial dimensions. 

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