Heat Treatment-Induced Microstructural Changes in Selectively Laser Melted

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00643989" target="_blank" >RIV/68081723:_____/25:00643989 - isvavai.cz</a>

Výsledek na webu

<a href="https://journalmt.com/artkey/mft-202506-0002_heat-treatment-induced-microstructural-changes-in-selectively-laser-melted-alsi10mg-alloy.php" target="_blank" >https://journalmt.com/artkey/mft-202506-0002_heat-treatment-induced-microstructural-changes-in-selectively-laser-melted-alsi10mg-alloy.php</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/mft.2025.077" target="_blank" >10.21062/mft.2025.077</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heat Treatment-Induced Microstructural Changes in Selectively Laser Melted

Popis výsledku v původním jazyce

The study examines the effect of various post-processing heat treatments on the microstructural evolution and hardness of the AlSi10Mg alloy produced by selective laser melting (SLM). The alloy was examined in the as-built (AB) condition and after three heat treatment regimes: direct aging (DA, 160 degrees C/5 h), stress relieving (SR, 300 degrees C/2 h), and solution annealing followed by artificial aging (SA, 520 degrees C/2 h + 170 degrees C/4 h) to better understand the solidification and consolidation processes. A multiscale characterization using OM, SEM, EBSD, TEM, and EDS was performed to reveal the changes in specific microstructures due to additive manufacturing and different levels of heat treatment. The AB state exhibited a fine cellular network of Si within an alpha-Al matrix, and high hardness (approx. 138 HV1). The DA treatment preserved cellular morphology with mild coarsening, whereas SR led to partial fragmentation of the Si network and a significant drop in hardness (approx. 83 HV1). The SA condition caused recrystallization, Si spheroidization, and formation of Mg-and Fe-rich precipitates, accompanied by moderate hardness recovery (approx. 104 HV1). The persistent crystallographic texture was confirmed across all states.

Název v anglickém jazyce

Heat Treatment-Induced Microstructural Changes in Selectively Laser Melted

Popis výsledku anglicky

The study examines the effect of various post-processing heat treatments on the microstructural evolution and hardness of the AlSi10Mg alloy produced by selective laser melting (SLM). The alloy was examined in the as-built (AB) condition and after three heat treatment regimes: direct aging (DA, 160 degrees C/5 h), stress relieving (SR, 300 degrees C/2 h), and solution annealing followed by artificial aging (SA, 520 degrees C/2 h + 170 degrees C/4 h) to better understand the solidification and consolidation processes. A multiscale characterization using OM, SEM, EBSD, TEM, and EDS was performed to reveal the changes in specific microstructures due to additive manufacturing and different levels of heat treatment. The AB state exhibited a fine cellular network of Si within an alpha-Al matrix, and high hardness (approx. 138 HV1). The DA treatment preserved cellular morphology with mild coarsening, whereas SR led to partial fragmentation of the Si network and a significant drop in hardness (approx. 83 HV1). The SA condition caused recrystallization, Si spheroidization, and formation of Mg-and Fe-rich precipitates, accompanied by moderate hardness recovery (approx. 104 HV1). The persistent crystallographic texture was confirmed across all states.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA23-05372S" target="_blank" >GA23-05372S: Povrchová a podpovrchová eroze způsobená vícenásobným dopadem kapek</a><br>

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

Manufacturing Technology

ISSN

1213-2489

e-ISSN

2787-9402

Svazek periodika

25

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

742-750

Kód UT WoS článku

001650153400004

EID výsledku v databázi Scopus

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