Comparison of direct energy deposition and powder bed fusion technology in the preparation of Ti–6Al–4V alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00635765" target="_blank" >RIV/68378271:_____/25:00635765 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/25:43933355 RIV/60461373:22810/25:43933355

Výsledek na webu

<a href="https://hdl.handle.net/11104/0366791" target="_blank" >https://hdl.handle.net/11104/0366791</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2025.01.231" target="_blank" >10.1016/j.jmrt.2025.01.231</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of direct energy deposition and powder bed fusion technology in the preparation of Ti–6Al–4V alloy

Popis výsledku v původním jazyce

The Ti–6Al–4V alloy is the most widely used titanium-based alloy in aerospace and biomedical applications. Due to the complex shapes required for components in these application areas, additive manufacturing has become a promising option with its advantageous speed and precision. This study examined the impact of direct energy deposition (DED) and powder bed fusion (PBF) technologies on the resulting properties of the Ti–6Al–4V alloy. DED-produced samples showed almost fully dense structure, while PBF-produced ones were characterized by 0.3 % residual porosity. In all states, the α or α′ phase predominated in the material microstructure. The Ti–6Al–4V alloy produced by different additive manufacturing methods showed comparable hardness values in both, as-printed (380 HV) and as-printed + heat-treated (370 HV) states. However, the samples printed by the PBF method exhibited higher tensile strength and yield strength than those printed by the DED method. These values before and after stress-relief heat treatment differed by approximately 100 MPa. Conversely, the DED-printed material is more stable at elevated temperatures (up to 800 °C) compared to the one printed by PBF.

Název v anglickém jazyce

Comparison of direct energy deposition and powder bed fusion technology in the preparation of Ti–6Al–4V alloy

Popis výsledku anglicky

The Ti–6Al–4V alloy is the most widely used titanium-based alloy in aerospace and biomedical applications. Due to the complex shapes required for components in these application areas, additive manufacturing has become a promising option with its advantageous speed and precision. This study examined the impact of direct energy deposition (DED) and powder bed fusion (PBF) technologies on the resulting properties of the Ti–6Al–4V alloy. DED-produced samples showed almost fully dense structure, while PBF-produced ones were characterized by 0.3 % residual porosity. In all states, the α or α′ phase predominated in the material microstructure. The Ti–6Al–4V alloy produced by different additive manufacturing methods showed comparable hardness values in both, as-printed (380 HV) and as-printed + heat-treated (370 HV) states. However, the samples printed by the PBF method exhibited higher tensile strength and yield strength than those printed by the DED method. These values before and after stress-relief heat treatment differed by approximately 100 MPa. Conversely, the DED-printed material is more stable at elevated temperatures (up to 800 °C) compared to the one printed by PBF.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Research and Technology-JMR&T

ISSN

2238-7854

e-ISSN

2214-0697

Svazek periodika

35

Číslo periodika v rámci svazku

March–April

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

3825-3840

Kód UT WoS článku

001429080900001

EID výsledku v databázi Scopus

2-s2.0-85217788478