Additive manufacturing of strong and ductile In939+TiB2 by laser powder bed fusion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00627719" target="_blank" >RIV/68081723:_____/25:00627719 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0921509325006707?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0921509325006707?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2025.148446" target="_blank" >10.1016/j.msea.2025.148446</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Additive manufacturing of strong and ductile In939+TiB2 by laser powder bed fusion

Popis výsledku v původním jazyce

Improving the printability and high-temperature mechanical performance of high aluminum and titanium content Inconel superalloys is of interest in aerospace, automotive, and energy industries. In aerospace applications, for instance, components such as turbine blades and engine parts require exceptional strength and ductility under extreme temperatures (above 800 °C), which more common Inconel alloys such as In718 and In625 struggle to provide. Therefore, this study explores the influence of TiB2 on the additive manufacturing of Inconel 939 superalloy (In939) by laser powder bed fusion (LPBF). TiB2 powders with a size of approximately 1–3 μm were decorated on the surfaces of Inconel 939 alloy powders via high-speed blending. Both pure In939 and In939+TiB2 samples were prepared by LPBF with varying laser power and scanning speed. Microstructural analysis of the as-printed specimens revealed that the TiB2 addition to Inconel 939 eliminated crack formation under all LPBF conditions tested. Consequently, the as-printed In939+TiB2 exhibited superior room temperature (RT) yield strength (1256 MPa) and ultimate tensile strength (1578 MPa) with reasonable tensile ductility (13–15 %) compared to the as-printed In939. Furthermore, In939+TiB2 shows exceptional high-temperature strength, demonstrating superior performance up to 850°C in contrast to other additively manufactured and cast In939 materials in the literature. This study paves the way for sectors including aerospace, automotive, and energy to significantly enhance the performance of critical components like turbine blades and engine parts made of In939 through LPBF.

Název v anglickém jazyce

Additive manufacturing of strong and ductile In939+TiB2 by laser powder bed fusion

Popis výsledku anglicky

Improving the printability and high-temperature mechanical performance of high aluminum and titanium content Inconel superalloys is of interest in aerospace, automotive, and energy industries. In aerospace applications, for instance, components such as turbine blades and engine parts require exceptional strength and ductility under extreme temperatures (above 800 °C), which more common Inconel alloys such as In718 and In625 struggle to provide. Therefore, this study explores the influence of TiB2 on the additive manufacturing of Inconel 939 superalloy (In939) by laser powder bed fusion (LPBF). TiB2 powders with a size of approximately 1–3 μm were decorated on the surfaces of Inconel 939 alloy powders via high-speed blending. Both pure In939 and In939+TiB2 samples were prepared by LPBF with varying laser power and scanning speed. Microstructural analysis of the as-printed specimens revealed that the TiB2 addition to Inconel 939 eliminated crack formation under all LPBF conditions tested. Consequently, the as-printed In939+TiB2 exhibited superior room temperature (RT) yield strength (1256 MPa) and ultimate tensile strength (1578 MPa) with reasonable tensile ductility (13–15 %) compared to the as-printed In939. Furthermore, In939+TiB2 shows exceptional high-temperature strength, demonstrating superior performance up to 850°C in contrast to other additively manufactured and cast In939 materials in the literature. This study paves the way for sectors including aerospace, automotive, and energy to significantly enhance the performance of critical components like turbine blades and engine parts made of In939 through LPBF.

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 Science and Engineering A Structural Materials Properties Microstructure and Processing

ISSN

0921-5093

e-ISSN

1873-4936

Svazek periodika

939

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

20

Strana od-do

148446

Kód UT WoS článku

001501978800006

EID výsledku v databázi Scopus

2-s2.0-105005413931