Strengthening 316L austenitic steel through a bimodal approach with ODS steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00638706" target="_blank" >RIV/68081723:_____/25:00638706 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389021:_____/25:00638706 RIV/00216305:26620/26:0199496

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s10853-025-11444-x" target="_blank" >https://link.springer.com/article/10.1007/s10853-025-11444-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10853-025-11444-x" target="_blank" >10.1007/s10853-025-11444-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Strengthening 316L austenitic steel through a bimodal approach with ODS steel

Popis výsledku v původním jazyce

Achieving a balance between strength and ductility has long been a challenge in materials science. Strategies such as bimodal grain size distribution have been proposed to overcome this limitation by combining coarse grains for ductility with fine grains for strength. This study presents a novel approach to preparing bimodal 316L austenitic stainless steel, integrating fine-grained oxide dispersion-strengthened (ODS) steel as the strengthening matrix with coarse-grained austenite steel. The fine-grained ODS phase, prepared by mechanical alloying, provides uniform microstructural properties and controls the overall alloy structure. The tensile properties of the bimodal structures were analysed, revealing that a volume fraction of 70–80% fine grains achieves optimal strength–ductility synergy, deviating from the conventional Hall–Petch relationship. This innovative use of ODS steel demonstrates its potential to enhance mechanical performance and scalability, offering a versatile tool for tailoring advanced austenitic steels.

Název v anglickém jazyce

Strengthening 316L austenitic steel through a bimodal approach with ODS steel

Popis výsledku anglicky

Achieving a balance between strength and ductility has long been a challenge in materials science. Strategies such as bimodal grain size distribution have been proposed to overcome this limitation by combining coarse grains for ductility with fine grains for strength. This study presents a novel approach to preparing bimodal 316L austenitic stainless steel, integrating fine-grained oxide dispersion-strengthened (ODS) steel as the strengthening matrix with coarse-grained austenite steel. The fine-grained ODS phase, prepared by mechanical alloying, provides uniform microstructural properties and controls the overall alloy structure. The tensile properties of the bimodal structures were analysed, revealing that a volume fraction of 70–80% fine grains achieves optimal strength–ductility synergy, deviating from the conventional Hall–Petch relationship. This innovative use of ODS steel demonstrates its potential to enhance mechanical performance and scalability, offering a versatile tool for tailoring advanced austenitic steels.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

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 Science

ISSN

0022-2461

e-ISSN

1573-4803

Svazek periodika

60

Číslo periodika v rámci svazku

38

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

17971-17988

Kód UT WoS článku

001564674700001

EID výsledku v databázi Scopus

2-s2.0-105015530262