Laser Treatment of Titanium Alloys
The structural and phase states of surface layers of the titanium VT1-0, VT3-1, VT-6 and VT-8 alloys after laser treatment in various gas environments, VT25-U alloy after twist extrusion and subsequent laser treatment, and VT1-0 alloy after laser alloying with powders of pure elements Fe, Co, Ni are...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
G. V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine
2024-12-01
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| Series: | Успехи физики металлов |
| Subjects: | |
| Online Access: | https://ufm.imp.kiev.ua/en/abstract/v25/i04/787.html |
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| Summary: | The structural and phase states of surface layers of the titanium VT1-0, VT3-1, VT-6 and VT-8 alloys after laser treatment in various gas environments, VT25-U alloy after twist extrusion and subsequent laser treatment, and VT1-0 alloy after laser alloying with powders of pure elements Fe, Co, Ni are investigated. As shown, the mentioned types of treatments lead to an increase in the surface-layers’ microhardness values. The influence of the surrounding gas atmosphere and the titanium-alloy chemical composition on the structure-formation processes during their laser melting and on the microhardness value of the treated layers is analysed. The effect of laser treatment of the surface of sintered single-phase powder titanium VT1-0-type alloys on the porosity level in the melting zone is investigated. As established, the microhardness in the laser-melting zone of the VT25U alloy exceeds the samples’ microhardness after heat treatments and twist extrusion. Therefore, the presented laser surface-treatment modes act as an effective method of titanium-alloy surface treatment, since they have a qualitative effect on structure that, in turn, leads to an improvement in the mechanical characteristics of the surface layers. |
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| ISSN: | 1608-1021 2617-0795 |