MICROSTRUCTURAL CHARACTERISTICS OF MODIFIED ODS Ni-BASED SUPERALLOYS FABRICATED USING LASER-POWDER BED FUSION.

Autor: DONG WAN LEE, JIN WOO KIM, SU GWAN LEE, DHIN VAN CONG, JIN CHUN KIM, HWI JUN KIM, JOONG GYEONG LIM, TAE SIK YOON
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Zdroj: Archives of Metallurgy & Materials; 2024, Vol. 69 Issue 2, p467-470, 4p
Abstrakt: Oxide dispersion-strengthened (ODS) superalloys are usually manufactured by a hot isostatic pressing after mechanical alloying (MA-HIP). However, this process cannot produce complex-shaped parts. Here, we used an additive manufacturing product (powders produced by laser powder bed fusion, L-PBF) to address this issue. Modified ODS Ni-based superalloy powders with a similar composition to the mechanical alloy 6000 (MA6000) were manufactured using a gas atomization process. The obtained powders and L-PBF synthesized samples were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), LPSA, and EBSD analyses. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index