Корозійна стійкість титанових сплавів, отриманих методами адитивних технологій
Titanium alloys are widely used structural materials, applied in aggressive environments, particularly in the aerospace, medical, and energy industries. Due to their high mechanical properties, corrosion resistance, and biocompatibility, titanium alloys are an optimal choice for manufacturing critic...
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| Date: | 2025 |
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| Main Author: | |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Physico- Technological Institute of Metals and Alloys of the NAS of Ukraine
2025
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| Subjects: | |
| Online Access: | https://momjournal.org.ua/index.php/mom/article/view/2025-1-5 |
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| Journal Title: | Metal Science and Treatment of Metals |
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Metal Science and Treatment of Metals| Summary: | Titanium alloys are widely used structural materials, applied in aggressive environments, particularly in the aerospace, medical, and energy industries. Due to their high mechanical properties, corrosion resistance, and biocompatibility, titanium alloys are an optimal choice for manufacturing critical components. At the same time, an important research direction is the development of new methods to enhance their corrosion resistance, especially in extreme temperatures and aggressive environments, as well as improving their production technologies, particularly through the use of additive manufacturing. A comparative assessment of the corrosion resistance of α- and pseudo-α-titanium alloys, grades VT1-0 and VT20 (Ti–Al–Mo–V–Zr), produced by traditional and additive manufacturing technologies (electron beam melting) has been conducted. The study showed that the alloys produced by the additive method exhibit lower corrosion resistance in a 20% hydrochloric acid solution compared to those made by traditional methods. It was found that the deterioration in corrosion resistance is associated with the formation of Widmanstätten structure and metastable martensite during additive manufacturing. The corrosion resistance of the VT1-0 alloy, produced by additive technologies, was studied. It was established that the corrosion rate of the transition zone is 0.394 g/(m²·year), lower than that of VT1-0 but higher than that of VT20. Further studies may focus on confirming this phenomenon, identifying its causes, and investigating the impact of the microstructure formed during the additive process on the corrosion resistance of titanium alloys. It is also important to assess the role of internal defects and their impact on the corrosion rate, particularly for VT1-0, and explore ways to improve corrosion resistance through the optimization of additive manufacturing processes. |
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