Influence of strain rate and temperature on the mechanical behaviour of additively manufactured AlSi10Mg alloy – experiment and the phenomenological constitutive modelling

The paper is related to the material behaviour of additively manufactured samples obtained by the direct metal laser sintering (DMLS) method from the AlSi10Mg powder. The specimens are subjected to a quasi-static and dynamic compressive loading in a wide range of strain rates and temperatures to inv...

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Bibliographic Details
Published in:Bulletin of the Polish Academy of Sciences. Technical sciences 2022, Vol.70 (4), p.141983-141983
Main Authors: Stanczak, Magda, Rusinek, Alexis, Broniszewska, Paula, Fras, Teresa, Pawłowski, Piotr
Format: Article
Language:English
Subjects:
Additive manufacturing
Alloys
alsi10mg aluminium alloy
Aluminum base alloys
compression
constitutive model
dmls method
Ductility
Laser sintering
Manufacturing
Mechanical properties
Modelling
shpb experiment
Sintering (powder metallurgy)
Solidification
Strain rate
Temperature
Tension tests
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Summary:The paper is related to the material behaviour of additively manufactured samples obtained by the direct metal laser sintering (DMLS) method from the AlSi10Mg powder. The specimens are subjected to a quasi-static and dynamic compressive loading in a wide range of strain rates and temperatures to investigate the influence of the manufacturing process conditions on the material mechanical properties. For completeness, an analysis of their deformed microstructure is also performed. The obtained results prove the complexity of the material behaviour; therefore, a phenomenological model based on the modified Johnson–Cook approach is proposed. The developed model describes the material behaviour with much better accuracy than the classical constitutive function. The resulted experimental testing and its modelling present the potential of the discussed material and the manufacturing technology.
ISSN:2300-1917
0239-7528
2300-1917
DOI:10.24425/bpasts.2022.141983