Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10258615" target="_blank" >RIV/61989100:27230/25:10258615 - isvavai.cz</a>

Result on the web

<a href="https://www.nature.com/articles/s41598-025-14980-3" target="_blank" >https://www.nature.com/articles/s41598-025-14980-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-025-14980-3" target="_blank" >10.1038/s41598-025-14980-3</a>

Result language

angličtina

Original language name

Utilizing PBF-LB/M AlSI10Mg alloy post-processed via KOBO-extrusion and subsequent cold drawing to obtain high-strength wire

Original language description

This study investigates the efficacy of a multi-stage thermo-mechanical processing route, comprising KOBO extrusion followed by cold drawing, for enhancing the mechanical properties of AlSi10Mg alloy produced via by powder bed fusion laser beam melting (PBF-LB/M). The objective was to develop high-strength wires from this additively manufactured alloy. The microstructural evolution throughout the processing sequence was characterized using scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). KOBO extrusion transformed the initial as-built microstructure into a fine-grained, composite-like structure, characterized by a refined alpha-Al matrix with homogeneously distributed, fragmented Si particles. This resulted in a compelling combination of mechanical properties, including an ultimate tensile strength (UTS) of 324 MPa and a total elongation of approximately 10%. Subsequent cold drawing induced significant strain hardening and further grain refinement, achieving an average grain size of - 700 nm. This raised the UTS to 401 MPa, though it was accompanied by a substantial reduction in ductility to - 0.6%. These findings demonstrate that the synergistic combination of KOBO extrusion and cold drawing is a promising pathway for fabricating high-strength AlSi10Mg wires from PBF-LB/M -processed feedstock.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20300 - Mechanical engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

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

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

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Volume of the periodical

15

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

20

Pages from-to

nestránkováno

UT code for WoS article

001558698900023

EID of the result in the Scopus database

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