STUDY OF THE APPLICABILITY OF A MICROMECHANICAL STRENGTHENING MODEL TO ALSI10MG ALLOY UNDER ADDITIVE MANUFACTURING CONDITIONS
DOI:
https://doi.org/10.34185/1991-7848.itmm.2026.01.003Keywords:
laser-based powder bed fusion, silumin, defects in materials, norms and methods of control, strength, modeling of propertiesAbstract
For structural aluminum alloys such as silumin, tensile testing to determine strength and ductility parameters is a mandatory quality control procedure. The requirement for technological control of each batch can be reduced provided that stable and reproducible results are achieved, which can be ensured, in particular, by using programmed manufacturing regimes in additive PBF-LB/M technology. The experimental determination of mechanical properties may be replaced by their modeling based on structural parameters. This work investigates an existing micromechanical strengthening model of the alloy based on the rule of mixtures, calculated using structural parameters determined from samples produced under different conditions and process parameters. The calculated yield strength values are compared with the results of tensile testing. It was found that the model requires further refinement due to a significant error, and the methods for determining the structural parameters of the material should be simplified as much as possible to enable wider implementation.
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VDI 3405 Blatt 2.1 Additive Fertigungsverfahren - Pulverbettbasiertes Schmelzen von Metall mittels Laserstrahl (PBF-LB/M) - Materialkenndatenblatt Aluminiumlegierung AlSi10Mg. -2020-08 — 7.
