Effect of energy density and hot isostatic pressing on microstructure and porosity in laser powder bed fusion-processed Ti6Al4V alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F25%3A10259475" target="_blank" >RIV/61989100:27360/25:10259475 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/metal/2025/5090-effect-of-energy-density-on-microstructure-and-porosity-in-laser-powder-bed-fusion-processed-ti6al4v-alloy" target="_blank" >https://www.confer.cz/metal/2025/5090-effect-of-energy-density-on-microstructure-and-porosity-in-laser-powder-bed-fusion-processed-ti6al4v-alloy</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2025.5090" target="_blank" >10.37904/metal.2025.5090</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of energy density and hot isostatic pressing on microstructure and porosity in laser powder bed fusion-processed Ti6Al4V alloy

Popis výsledku v původním jazyce

Among titanium-based alloys, Ti-6Al-4V is the most extensively utilized material for structural applications due to its exceptional strength-to-weight ratio, outstanding corrosion resistance, and excellent biocompatibility. It has been widely processed via laser powder bed fusion (L-PBF), a leading additive manufacturing technique that allows for the fabrication of near-net-shape components, offering substantial cost and material savings. The processing parameters employed in L-PBF critically influence the resulting microstructure, defect formation, and mechanical performance of the alloy. This study focuses on the microstructural features and relative density of Ti-6Al-4V components manufactured under varying energy densities. The findings reveal that defect generation is highly sensitive to the applied energy density, with a marked effect on key mechanical properties, especially ductility. Furthermore, the results indicate that higher laser power can mitigate the sensitivity of other processing variables, enabling the production of high-quality parts at increased scanning speeds and reduced build times. A detailed analysis of individual process parameters is presented, along with an evaluation of the effects of hot isostatic pressing (HIP) and post-process heat treatments on the evolution of the microstructure and the enhancement of mechanical properties.

Název v anglickém jazyce

Effect of energy density and hot isostatic pressing on microstructure and porosity in laser powder bed fusion-processed Ti6Al4V alloy

Popis výsledku anglicky

Among titanium-based alloys, Ti-6Al-4V is the most extensively utilized material for structural applications due to its exceptional strength-to-weight ratio, outstanding corrosion resistance, and excellent biocompatibility. It has been widely processed via laser powder bed fusion (L-PBF), a leading additive manufacturing technique that allows for the fabrication of near-net-shape components, offering substantial cost and material savings. The processing parameters employed in L-PBF critically influence the resulting microstructure, defect formation, and mechanical performance of the alloy. This study focuses on the microstructural features and relative density of Ti-6Al-4V components manufactured under varying energy densities. The findings reveal that defect generation is highly sensitive to the applied energy density, with a marked effect on key mechanical properties, especially ductility. Furthermore, the results indicate that higher laser power can mitigate the sensitivity of other processing variables, enabling the production of high-quality parts at increased scanning speeds and reduced build times. A detailed analysis of individual process parameters is presented, along with an evaluation of the effects of hot isostatic pressing (HIP) and post-process heat treatments on the evolution of the microstructure and the enhancement of mechanical properties.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/TN02000018" target="_blank" >TN02000018: Národní Centrum Kompetence STROJÍRENSTVÍ</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2025 : 34th International Conference on Metallurgy and Materials : abstracts : May 21 - 23, 2025, OREA Congress Hotel Brno, Czech Republic, EU

ISBN

978-80-88365-26-6

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

382-387

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

21. 5. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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