The Dispersion-Strengthening Effect of TiN NanoparticlesnEvoked by Ex Situ Nitridation of Gas-Atomized, NiCu-BasednAlloy 400 in Fluidized Bed Reactor for Laser Powder Bed Fusion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F24%3A00598934" target="_blank" >RIV/68081723:_____/24:00598934 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2504-4494/8/5/223" target="_blank" >https://www.mdpi.com/2504-4494/8/5/223</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/jmmp8050223" target="_blank" >10.3390/jmmp8050223</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Dispersion-Strengthening Effect of TiN NanoparticlesnEvoked by Ex Situ Nitridation of Gas-Atomized, NiCu-BasednAlloy 400 in Fluidized Bed Reactor for Laser Powder Bed Fusion

Popis výsledku v původním jazyce

Throughout recent years, the implementation of nanoparticles into the microstructure ofnadditively manufactured (AM) parts has gained great attention in the material science community.nThe dispersion strengthening (DS) effect achieved leads to a substantial improvement in the mechani cal properties of the alloy used. In this work, an ex situ approach of powder conditioning prior to thenAM process as per a newly developed fluidized bed reactor (FBR) was applied to a titanium-enrichednvariant of the NiCu-based Alloy 400. Powders were investigated before and after FBR exposure,nand it was found that the conditioning led to a significant increase in the TiN formation along grainnboundaries. Manufactured to parts via laser-based powder bed fusion of metals (PBF-LB/M), the exnsitu FBR approach not only revealed a superior microstructure compared to unconditioned parts butnalso with respect to a recently introduced in situ approach based on a gas atomization reaction syn thesis (GARS). A substantially higher number of nanoparticles formed along cell walls and enablednan effective suppression of dislocation movement, resulting in excellent tensile, creep, and fatiguenproperties, even at elevated temperatures up to 750 ◦C. Such outstanding properties have never beenndocumented for AM-processed Alloy 400, which is why the demonstrated FBR ex situ conditioningnmarks a promising modification route for future alloy systems

Název v anglickém jazyce

The Dispersion-Strengthening Effect of TiN NanoparticlesnEvoked by Ex Situ Nitridation of Gas-Atomized, NiCu-BasednAlloy 400 in Fluidized Bed Reactor for Laser Powder Bed Fusion

Popis výsledku anglicky

Throughout recent years, the implementation of nanoparticles into the microstructure ofnadditively manufactured (AM) parts has gained great attention in the material science community.nThe dispersion strengthening (DS) effect achieved leads to a substantial improvement in the mechani cal properties of the alloy used. In this work, an ex situ approach of powder conditioning prior to thenAM process as per a newly developed fluidized bed reactor (FBR) was applied to a titanium-enrichednvariant of the NiCu-based Alloy 400. Powders were investigated before and after FBR exposure,nand it was found that the conditioning led to a significant increase in the TiN formation along grainnboundaries. Manufactured to parts via laser-based powder bed fusion of metals (PBF-LB/M), the exnsitu FBR approach not only revealed a superior microstructure compared to unconditioned parts butnalso with respect to a recently introduced in situ approach based on a gas atomization reaction syn thesis (GARS). A substantially higher number of nanoparticles formed along cell walls and enablednan effective suppression of dislocation movement, resulting in excellent tensile, creep, and fatiguenproperties, even at elevated temperatures up to 750 ◦C. Such outstanding properties have never beenndocumented for AM-processed Alloy 400, which is why the demonstrated FBR ex situ conditioningnmarks a promising modification route for future alloy systems

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Manufacturing and Materials Processing

ISSN

2504-4494

e-ISSN

2504-4494

Svazek periodika

8

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

29

Strana od-do

223

Kód UT WoS článku

001340933400001

EID výsledku v databázi Scopus

2-s2.0-85207683743