Modification of surface layers by high energy treatment
Exposure to laser radiation leads to a change in the temperature field of the substance being treated. The nature of heating, which is determined by the rate of change of temperature, temperature gradients, the time to reach the temperatures of structural and phase transitions, is different dependin...
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| Format: | Article |
| Language: | English |
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Belarusian National Technical University
2019-08-01
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| Series: | Литьë и металлургия |
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| Online Access: | https://lim.bntu.by/jour/article/view/2875 |
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| author | M. N. Vereschagin S. N. Tselueva M. Yu. Tseluev |
| author_facet | M. N. Vereschagin S. N. Tselueva M. Yu. Tseluev |
| author_sort | M. N. Vereschagin |
| collection | DOAJ |
| description | Exposure to laser radiation leads to a change in the temperature field of the substance being treated. The nature of heating, which is determined by the rate of change of temperature, temperature gradients, the time to reach the temperatures of structural and phase transitions, is different depending on the properties of the material being processed and the processing conditions.When modifying the surface layers by high-energy processing by changing the power and time of exposure to laser radiation, you can get a wide range of structural states of the treated surface areas of the material.It is shown that the shape of TVP diagrams and cooling curves of precision alloys on the surface of a two-layer metal system after heating them with laser radiation are determined by the competition of two processes acting in opposite directions: an increase in the driving force of the crystallization process with an increase in supercooling and a decrease in the surface of atoms.The method of surface modification by moving laser radiation allows to obtain amorphous functional layers of precision alloys on the surface of metal products. |
| format | Article |
| id | doaj-art-188f998f2eb34abdb21c0c405559f88a |
| institution | Kabale University |
| issn | 1683-6065 2414-0406 |
| language | English |
| publishDate | 2019-08-01 |
| publisher | Belarusian National Technical University |
| record_format | Article |
| series | Литьë и металлургия |
| spelling | doaj-art-188f998f2eb34abdb21c0c405559f88a2025-02-03T11:51:08ZengBelarusian National Technical UniversityЛитьë и металлургия1683-60652414-04062019-08-010210911610.21122/1683-6065-2019-2-109-1162841Modification of surface layers by high energy treatmentM. N. Vereschagin0S. N. Tselueva1M. Yu. Tseluev2Pavel Sukhoi State Technical University of GomelPavel Sukhoi State Technical University of GomelV.A. Belyi Metal Polymer Research Institute of National Academy of Sciences of BelarusExposure to laser radiation leads to a change in the temperature field of the substance being treated. The nature of heating, which is determined by the rate of change of temperature, temperature gradients, the time to reach the temperatures of structural and phase transitions, is different depending on the properties of the material being processed and the processing conditions.When modifying the surface layers by high-energy processing by changing the power and time of exposure to laser radiation, you can get a wide range of structural states of the treated surface areas of the material.It is shown that the shape of TVP diagrams and cooling curves of precision alloys on the surface of a two-layer metal system after heating them with laser radiation are determined by the competition of two processes acting in opposite directions: an increase in the driving force of the crystallization process with an increase in supercooling and a decrease in the surface of atoms.The method of surface modification by moving laser radiation allows to obtain amorphous functional layers of precision alloys on the surface of metal products.https://lim.bntu.by/jour/article/view/2875laser radiationhigh-energy processinglaser hardeningtemperature profiletvp-diagram |
| spellingShingle | M. N. Vereschagin S. N. Tselueva M. Yu. Tseluev Modification of surface layers by high energy treatment Литьë и металлургия laser radiation high-energy processing laser hardening temperature profile tvp-diagram |
| title | Modification of surface layers by high energy treatment |
| title_full | Modification of surface layers by high energy treatment |
| title_fullStr | Modification of surface layers by high energy treatment |
| title_full_unstemmed | Modification of surface layers by high energy treatment |
| title_short | Modification of surface layers by high energy treatment |
| title_sort | modification of surface layers by high energy treatment |
| topic | laser radiation high-energy processing laser hardening temperature profile tvp-diagram |
| url | https://lim.bntu.by/jour/article/view/2875 |
| work_keys_str_mv | AT mnvereschagin modificationofsurfacelayersbyhighenergytreatment AT sntselueva modificationofsurfacelayersbyhighenergytreatment AT myutseluev modificationofsurfacelayersbyhighenergytreatment |