To develop any process of laser technology, you need to solve 3 problems: 1) What are the properties of the interaction of laser radiation with matter must be selected to achieve the goal (resonant – non-resonant, absorption-scattering, photo- or thermal absorption, heating, hardening, melting, softening, evaporation, decomposition, coagulation, etc.); 2) What type of laser source should be used to achieve this goal (wavelength, operation mode – continuous or pulse-frequency, power, pulse duration, transverse energy distribution in the beam, coherence, monochromaticity, polarization, etc. taking into account the reliability, stability of the process and its value, and how to calculate and verify these parameters ?; 3) What are the requirements for the transverse and longitudinal shape of the beam and what opto-mechanical, opto-electronic and other systems are needed to solve this problem? Successful solution of these problems hardens the high quality of the result of the application of laser technology of materials processing.
The aim of this work is to show the effectiveness of laser surface treatment of materials on their micromechanical properties.
The surface of the samples was treated with laser radiation using a pulsed neodymium laser YAG: Nd. Vickers microhardness measurements were then performed.
The surface of silicon carbide was irradiated with a laser beam with different technical parameters. The micromechanical characteristics of the treated samples were studied and their comparison with the source material was made. Suggestions for laser modification of mechanical properties of superhard materials are made. Alloying of aluminum with titanium nitride impurities by pulsed laser irradiation was performed. A significant increase in microhardness in the field of laser fusion of titanium nitride nanopowder into the aluminum matrix was revealed. We have thus shown that laser treatment of structural and functional materials is an effective method of controlling their properties.
A set of experimental studies, in particular, structural, optical, and magnetic, will be conducted to physically substantiate the established results. In this paper, we have expressed our views, citing well-known literature sources.
| [1] V. S. Golubev, V. I. Gurinovich, I. A. Romanchuk "Lazernaya poverkhnostnaya obrabotka materialov i puti povysheniya yeye effektivnosti" ["Laser surface treatment of materials and ways to improve its efficiency"], Vestnik BarGU. Seriya: Tekhnicheskiye nauki, vol. 5, pp. 31-36., 2017. [in Russian] | |||
| [2] S. A. Astapchik, V. S. Golubev, A. G. Maklakov "Lazernyye tekhnologii: vozmozhnosti i perspektivy obrabotki detaley i instrumenta" ["Laser technologies: opportunities and prospects for processing parts and tools"], Tyazheloye mashinostroyeniye, vol. 2. pp. 33-37, 2004. [in Russian] | |||
| [3] S.A. Astapchik [et al.]. Lazernyye tekhnologii v mashinostroyenii i metalloobrabotke [Laser technologies in mechanical engineering and metalworking], Minsk: Belorus. nauka, 252 p., 2008. [in Russian] | |||
| [4] S. A. Astapchik, V. S. Golubev, A. G. Maklakov "Lazernyye makrotekhnologii i oborudovaniye, razrabotannyye v FTI NAN Belarusi" ["Laser macrotechnologies and equipment developed at the Physicotechnical Institute of the National Academy of Sciences of Belarus"], Mashinostroyeniye i tekhnosfera XXI veka: sbornik trudov XV nauch.-Tekhn. Conf. Sevastopol', T. 1. pp. 73-76. 2008. [in Russian] | |||
| [5] V. I. Gurinovich [at al.]. "Strukturoobrazovaniye pri lazernom modifitsirovanii uglerodistykh staley" [Structure formation during laser modification of carbon steels] Mashinostroyeniye i tekhnosfera XXI veka: Sbornik Trudov XIX Nauch.-Tekhn. Conf., Sevastopol', T. 2. pp. 176-179., 2013. [in Russian] | |||
| [6] J. Dutta Majumdar, I. Manna "Laser processing of materials". Sadhana, vol. 28, pp. 495-562, 2003. https://doi.org/10.1007/BF02706446 | |||
| [7] S. S. Yashkova "Lazernoye poverkhnostnoye uprochneniye" ["Laser surface hardening"] Molodoy uchenyy. vol. 1 (135). pp. 99-101, 2017. | |||
| [8] Noureddine Barka et. al. "Effects of Laser Hardening Process Parameters on Hardness Profile of 4340 Steel Spline-An Experimental Approach" Coatings. vol. 10, no 4. pp. 342-348. 2020. https://doi.org/10.3390/coatings10040342 |
|||
| [9] P. Dinesh Babu, K.R. Balasubramanian, G. Buvanashekaran. "Laser surface hardening: a review" International Journal of Surface Science and Engineering. vol. 5, no. 2-3. pp. 131-151. 2011. https://doi.org/10.1504/IJSURFSE.2011.041398 |
|||
| [10] A. S. Krasnikov, A. I.Berezhnoi, L. I Mirkin. "Structure and properties of ceramic materials after laser treatment" Glass and Ceramics. vol. 56. pp. 172-176. 1999. https://doi.org/10.1007/BF02681329 | |||
| [11] D. Triantafyllidisab, L. Lia, F. H. Stott "Crack-Free Densification of Ceramics by Laser Surface Treatment" Surface and Coatings Technology. vol. 201, no. 6. pp. 3163-3173. 2006. https://doi.org/10.1016/j.surfcoat.2006.06.032 |
|||
| [12] Kafayat Eniola Hazzan, Manuela Pacella, Tian Long See. "Laser Processing of Hard and Ultra-Hard Materials for Micro-Machining and Surface Engineering Applications" Micromachines. vol. 12, no 8. pp. 895-901. 2021. https://doi.org/10.3390/mi12080895 | |||
| [13] R. Fedorov et. al. "Formation of Titanium Nitride, Titanium Carbide, and Silicon Carbide Surfaces by High Power Femtosecond Laser Treatment" ChemPlusChem. vol. 86, no. 9. pp. 1231-1242. https://doi.org/10.1002/cplu.202100118 |
|||
| [14] Bekir Sami Yilbas, Bharat Bhushan. "Laser Treatment of Sintered Silicon Carbide Surface for Enhanced Hydrophobicity". The Journal of The Minerals, Metals & Materials Society vol. 66. pp. 87-94. 2014 https://doi.org/10.1007/s11837-013-0795-9 |
|||
| [15] O.A. Ageyev, A.Ye. Belyayev, N.S. Boltovets [et al.] Karbid kremniya: tekhnologiya, svoystva, primeneniye [Silicon carbide: technology, properties, applications] Khar'kov: «ISMA», 2010. [in Russian] | |||
| [16] S.K. Gordeyev [at al]. "Dispersno-uprochnennyye kompozitsii almaz-karbid kremniya - novyye materialy dlya mashinostroyeniya" ["Dispersion-hardened compositions of diamond-silicon carbide - new materials for mechanical engineering"] Kompozity i nanostrukturi. vol.7, no. 2. pp. 61-71. 2015. [in Russian] | |||
| [17] G. R. Anstis et al "A Critical Evaluation of Indentation Techniques for Measuring Fracture Toughness: I, Direct Crack Measurements" Journal of the American Ceramic Society, vol. 64, no. 9. pp. 533-538. 1981 https://doi.org/10.1111/j.1151-2916.1981.tb10320.x | |||
| [18] Karbid kremniya spechennyy v tverdoy faze i zhidkofaznospechennyy karbid kremniya [Silicon carbide sintered in the solid phase and liquid phase sintered silicon carbide] URL: http://www.virial.ru/materials/91/ [in Russian] |