Modification of surface layers of metal parts by pulse laser processing
One of the common technological schemes for the laser processing of metal parts is laser «glazing» of the deposited thin layer of powder on the substrate, which makes it possible to obtain microcrystalline and amorphous structures in thin surface layers of parts. Pulse melting of small volumes of me...
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Belarusian National Technical University
2020-04-01
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| Series: | Литьë и металлургия |
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| Online Access: | https://lim.bntu.by/jour/article/view/3191 |
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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 | One of the common technological schemes for the laser processing of metal parts is laser «glazing» of the deposited thin layer of powder on the substrate, which makes it possible to obtain microcrystalline and amorphous structures in thin surface layers of parts. Pulse melting of small volumes of metal on the surface provides homogeneous liquids (melts), which, after crystallization, can fix the structure of a liquid with unique properties.The presence of three energy input ranges for pulsed laser surface treatment (ILPO) has been established. At an average level of energy input, a process of laser surfacing of the material occurs, while a high adhesive bond between the coating and the workpiece is fixed. The deposition of an amorphized iron-based alloy coating on a metal base of St3, 45 20X13 steels begins at a laser radiation density on the treatment surface of 1800–2000 W/mm2, and alloying at 3500–4000 W/mm2. With ILPO, the laser exposure zone (ZLV) has a layered structure – the fusion zone (ZO), the heat-affected zone (HAZ), and the source material zone. To obtain an amorphous-crystalline structure of the coating, the laser pulse frequency should not exceed 3–8 Hz. |
| format | Article |
| id | doaj-art-f8d29ae3d28c4df28bb1bf5be2435a6b |
| institution | Kabale University |
| issn | 1683-6065 2414-0406 |
| language | English |
| publishDate | 2020-04-01 |
| publisher | Belarusian National Technical University |
| record_format | Article |
| series | Литьë и металлургия |
| spelling | doaj-art-f8d29ae3d28c4df28bb1bf5be2435a6b2025-02-03T11:51:11ZengBelarusian National Technical UniversityЛитьë и металлургия1683-60652414-04062020-04-01019910910.21122/1683-6065-2020-1-99-1093098Modification of surface layers of metal parts by pulse laser processingM. N. Vereschagin0S. N. Tselueva1M. Yu. Tseluev2Gomel State Technical University named after P. O. SukhojGomel State Technical University named after P. O. SukhojV.A. Belyi Metal Polymer Research Institute of National Academy of Sciences of BelarusOne of the common technological schemes for the laser processing of metal parts is laser «glazing» of the deposited thin layer of powder on the substrate, which makes it possible to obtain microcrystalline and amorphous structures in thin surface layers of parts. Pulse melting of small volumes of metal on the surface provides homogeneous liquids (melts), which, after crystallization, can fix the structure of a liquid with unique properties.The presence of three energy input ranges for pulsed laser surface treatment (ILPO) has been established. At an average level of energy input, a process of laser surfacing of the material occurs, while a high adhesive bond between the coating and the workpiece is fixed. The deposition of an amorphized iron-based alloy coating on a metal base of St3, 45 20X13 steels begins at a laser radiation density on the treatment surface of 1800–2000 W/mm2, and alloying at 3500–4000 W/mm2. With ILPO, the laser exposure zone (ZLV) has a layered structure – the fusion zone (ZO), the heat-affected zone (HAZ), and the source material zone. To obtain an amorphous-crystalline structure of the coating, the laser pulse frequency should not exceed 3–8 Hz.https://lim.bntu.by/jour/article/view/3191laser radiation (li)pulsed laser surface treatmentsurface modificationpower densityenergy inputpulse repetition ratemicrostructuremicrohardness |
| spellingShingle | M. N. Vereschagin S. N. Tselueva M. Yu. Tseluev Modification of surface layers of metal parts by pulse laser processing Литьë и металлургия laser radiation (li) pulsed laser surface treatment surface modification power density energy input pulse repetition rate microstructure microhardness |
| title | Modification of surface layers of metal parts by pulse laser processing |
| title_full | Modification of surface layers of metal parts by pulse laser processing |
| title_fullStr | Modification of surface layers of metal parts by pulse laser processing |
| title_full_unstemmed | Modification of surface layers of metal parts by pulse laser processing |
| title_short | Modification of surface layers of metal parts by pulse laser processing |
| title_sort | modification of surface layers of metal parts by pulse laser processing |
| topic | laser radiation (li) pulsed laser surface treatment surface modification power density energy input pulse repetition rate microstructure microhardness |
| url | https://lim.bntu.by/jour/article/view/3191 |
| work_keys_str_mv | AT mnvereschagin modificationofsurfacelayersofmetalpartsbypulselaserprocessing AT sntselueva modificationofsurfacelayersofmetalpartsbypulselaserprocessing AT myutseluev modificationofsurfacelayersofmetalpartsbypulselaserprocessing |