Impact of chemical composition on solidification microstructure and hardness of additively manufactured 316L steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00643889" target="_blank" >RIV/68081723:_____/25:00643889 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.prostr.2025.10.026" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2025.10.026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2025.10.026" target="_blank" >10.1016/j.prostr.2025.10.026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of chemical composition on solidification microstructure and hardness of additively manufactured 316L steel

Popis výsledku v původním jazyce

Laser-powder bed fusion (L-PBF) is an efficient and advanced manufacturing technology that utilizes a laser to melt and solidify metallic alloy powders, layer by layer, to form the desired object shape. Among numerous L-PBF processing parameters, four basic parameters are vital for the quality of the final product, namely laser power (P), scanning speed (v), layer thickness (t), and hatch spacing (h). Another essential parameter, usually not considered in abundant studies on L-PBF 316L stainless steel, is the chemical composition of the used powders. This study addresses the crucial importance of the chemical composition of the feedstock powder on the microstructural characteristics (shape and size of grains, grain boundary types, texture, solidification/dislocation cells, etc.) of SLM 316L stainless steels. Using various advanced microscopic techniques, it is demonstrated that even very slight variations in the chemical composition of powders from different producers, still within allowable ranges, manufactured using identical processing parameters and conditions, result in a change of solidification mode that significantly impacts the final microstructure and mechanical performance of L-PBF 316L stainless steel.

Název v anglickém jazyce

Impact of chemical composition on solidification microstructure and hardness of additively manufactured 316L steel

Popis výsledku anglicky

Laser-powder bed fusion (L-PBF) is an efficient and advanced manufacturing technology that utilizes a laser to melt and solidify metallic alloy powders, layer by layer, to form the desired object shape. Among numerous L-PBF processing parameters, four basic parameters are vital for the quality of the final product, namely laser power (P), scanning speed (v), layer thickness (t), and hatch spacing (h). Another essential parameter, usually not considered in abundant studies on L-PBF 316L stainless steel, is the chemical composition of the used powders. This study addresses the crucial importance of the chemical composition of the feedstock powder on the microstructural characteristics (shape and size of grains, grain boundary types, texture, solidification/dislocation cells, etc.) of SLM 316L stainless steels. Using various advanced microscopic techniques, it is demonstrated that even very slight variations in the chemical composition of powders from different producers, still within allowable ranges, manufactured using identical processing parameters and conditions, result in a change of solidification mode that significantly impacts the final microstructure and mechanical performance of L-PBF 316L stainless steel.

Druh

D - Stať ve sborníku

CEP obor

—

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 statě ve sborníku

Procedia Structural Integrity

ISBN

—

ISSN

2452-3216

e-ISSN

—

Počet stran výsledku

8

Strana od-do

"Roč. 74 (2025)"

Název nakladatele

Elsevier B.V.

Místo vydání

Amsterdam

Místo konání akce

Brno

Datum konání akce

23. 6. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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