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Enhancing the energy absorption capacity of Ti–6Al–4V lattice structure manufactured by additive manufacturing through β-annealing

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Název: Enhancing the energy absorption capacity of Ti–6Al–4V lattice structure manufactured by additive manufacturing through β-annealing
Autoři: Yi Ren, Wei Ran, Yongxun Li, Bowen Xue, Wei Chen
Zdroj: Journal of Materials Research and Technology, Vol 35, Iss, Pp 2369-2376 (2025)
Informace o vydavateli: Elsevier BV, 2025.
Rok vydání: 2025
Témata: Mining engineering. Metallurgy, Lattice structure, Laser powder bed fusion, Energy absorption, TN1-997, Titanium alloy, Heat treatment
Popis: The geometric configuration and microstructure are crucial for the mechanical properties of the lattice structure formed by laser powder bed fusion (LPBF). In this study, a type of Ti–6Al–4V lattice structure with hexagonal-body-centered (HBC) structure was fabricated by LPBF and post β-annealing treatment. The microstructure, mechanical properties, energy absorption properties and deformation behavior of the Ti–6Al–4V HBC lattice structure was investigated by electron backscatter diffraction (EBSD), quasi-static compression tests and digital image correlation (DIC) techniques. The results showed that the β-annealing sample completely transformed from the αʹ martensitic microstructure to a completely stable α + β lamellar microstructure, which slightly reduced the ultimate compressive strength of the HBC lattice structure and increased the strain at the end of yielding. The β-annealed sample showed better plasticity and work-hardening rate during the loading process, which increased its absorption capacity by 74.7% compared to the un-annealed sample. Finally, the quantitative analysis of fracture morphology indicated that the HBC lattice structure subjected to β-annealing undergoes ductile-brittle fracture, significantly improving its deformation stability.
Druh dokumentu: Article
Jazyk: English
ISSN: 2238-7854
DOI: 10.1016/j.jmrt.2025.01.214
Přístupová URL adresa: https://doaj.org/article/0318df9c698645fcb196a9d13263e37b
Rights: CC BY
Přístupové číslo: edsair.doi.dedup.....1f84ea3e9669e1753e64f2b5e67e9025
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  Data: Enhancing the energy absorption capacity of Ti–6Al–4V lattice structure manufactured by additive manufacturing through β-annealing
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  Data: <searchLink fieldCode="AR" term="%22Yi+Ren%22">Yi Ren</searchLink><br /><searchLink fieldCode="AR" term="%22Wei+Ran%22">Wei Ran</searchLink><br /><searchLink fieldCode="AR" term="%22Yongxun+Li%22">Yongxun Li</searchLink><br /><searchLink fieldCode="AR" term="%22Bowen+Xue%22">Bowen Xue</searchLink><br /><searchLink fieldCode="AR" term="%22Wei+Chen%22">Wei Chen</searchLink>
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  Data: Journal of Materials Research and Technology, Vol 35, Iss, Pp 2369-2376 (2025)
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  Data: Elsevier BV, 2025.
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  Data: <searchLink fieldCode="DE" term="%22Mining+engineering%2E+Metallurgy%22">Mining engineering. Metallurgy</searchLink><br /><searchLink fieldCode="DE" term="%22Lattice+structure%22">Lattice structure</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+powder+bed+fusion%22">Laser powder bed fusion</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+absorption%22">Energy absorption</searchLink><br /><searchLink fieldCode="DE" term="%22TN1-997%22">TN1-997</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+alloy%22">Titanium alloy</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink>
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  Data: The geometric configuration and microstructure are crucial for the mechanical properties of the lattice structure formed by laser powder bed fusion (LPBF). In this study, a type of Ti–6Al–4V lattice structure with hexagonal-body-centered (HBC) structure was fabricated by LPBF and post β-annealing treatment. The microstructure, mechanical properties, energy absorption properties and deformation behavior of the Ti–6Al–4V HBC lattice structure was investigated by electron backscatter diffraction (EBSD), quasi-static compression tests and digital image correlation (DIC) techniques. The results showed that the β-annealing sample completely transformed from the αʹ martensitic microstructure to a completely stable α + β lamellar microstructure, which slightly reduced the ultimate compressive strength of the HBC lattice structure and increased the strain at the end of yielding. The β-annealed sample showed better plasticity and work-hardening rate during the loading process, which increased its absorption capacity by 74.7% compared to the un-annealed sample. Finally, the quantitative analysis of fracture morphology indicated that the HBC lattice structure subjected to β-annealing undergoes ductile-brittle fracture, significantly improving its deformation stability.
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      – Text: English
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      – SubjectFull: Mining engineering. Metallurgy
        Type: general
      – SubjectFull: Lattice structure
        Type: general
      – SubjectFull: Laser powder bed fusion
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      – SubjectFull: Energy absorption
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      – SubjectFull: TN1-997
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      – SubjectFull: Titanium alloy
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      – SubjectFull: Heat treatment
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      – TitleFull: Enhancing the energy absorption capacity of Ti–6Al–4V lattice structure manufactured by additive manufacturing through β-annealing
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