Solidification pathway induced microstructural differences in austenitic stainless steels produced by L-PBF

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00637772" target="_blank" >RIV/68081723:_____/25:00637772 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/full/10.1080/21663831.2025.2536044" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/21663831.2025.2536044</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/21663831.2025.2536044" target="_blank" >10.1080/21663831.2025.2536044</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Solidification pathway induced microstructural differences in austenitic stainless steels produced by L-PBF

Popis výsledku v původním jazyce

This study examines the influence of small compositional variations on the microstructure of 304L stainless steel produced by Laser Powder Bed Fusion (L-PBF). Despite identical processing parameters, N-atomized powder forms textured, columnar grains with elemental segregation, solidifying primarily as gamma-austenite with secondary ferrite. In contrast, Ar-atomized powder produces equiaxed grains with uniform composition, following a primary ferrite to secondary gamma-austenite mode. Operando synchrotron X-ray diffraction during L-PBF reveals that solidification mode critically shapes the final microstructure, underscoring the importance of solidification control for tailoring properties in austenitic stainless steels.

Název v anglickém jazyce

Solidification pathway induced microstructural differences in austenitic stainless steels produced by L-PBF

Popis výsledku anglicky

This study examines the influence of small compositional variations on the microstructure of 304L stainless steel produced by Laser Powder Bed Fusion (L-PBF). Despite identical processing parameters, N-atomized powder forms textured, columnar grains with elemental segregation, solidifying primarily as gamma-austenite with secondary ferrite. In contrast, Ar-atomized powder produces equiaxed grains with uniform composition, following a primary ferrite to secondary gamma-austenite mode. Operando synchrotron X-ray diffraction during L-PBF reveals that solidification mode critically shapes the final microstructure, underscoring the importance of solidification control for tailoring properties in austenitic stainless steels.

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

2025

Kód důvěrnosti údajů

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

Název periodika

Materials Research Letters

ISSN

2166-3831

e-ISSN

2166-3831

Svazek periodika

13

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

928-935

Kód UT WoS článku

001534765600001

EID výsledku v databázi Scopus

2-s2.0-105011978429