Skip to main content
SpringerLink
Log in

Porosity Inducing Process Parameters in Selective Laser Melted AlSi10Mg Aluminium Alloy

  • Published:
Physical Mesomechanics Aims and scope Submit manuscript

Abstract

Additive manufacturing techniques are known for the unrivalled geometric freedom they offer to designers. It is one of the mainstays of “metal 3D-printing”, compared to casting, which, in contrast, implies more restrictions because some shapes do not cool evenly or may need moulds or forms. Despite the possible presence of defects inside additive manufactured components, such as oxide films, pores or unmelted powder, they can be strongly reduced or controlled by process parameters optimization. That seems not true for a casting component, in which defects can vary a lot from zone to zone according to the solidification conditions. Porosity inducing process parameters in selective laser melted AlSi10Mg aluminium alloy are carefully analysed with the aim to find optimal conditions that guarantee the maximum material density and the best mechanical properties. Finally, a model is proposed that correlates the amount of pores with the alloy ultimate tensile strength.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.
Fig. 7.
Fig. 8.
Fig. 9.
Fig. 10.
Fig. 11.

Similar content being viewed by others

REFERENCES

  1. Standard Terminology for Additive Manufacturing Technologies: Designation F2792-12a, ASTM Committee F42 on Additive Manufacturing Technologies. Subcommittee F42.91 on Terminology, ASTM Int., 2012.

  2. Razavi, N., Ferro, P., Berto, F., and Torgersen, J., Fatigue Strength of Blunt V-Notched Specimens Produced by Selective Laser Melting of Ti–6Al–4V, Theor. Appl. Fract. Mech., 2018, vol. 13, pp. 74–78.

  3. Razavi, N., Ferro, P., and Berto, F., Fatigue Assessment of Ti–6Al–4V Circular Notched Specimens Produced by Selective Laser Melting, Metals, 2014, vol. 7, p. 291.

  4. Razavi, N., Bordonaro, G.G., Ferro, P., Torgersen, J., and Berto, F., Fatigue Behavior of Porous Ti–6Al–4V Made by Laser-Engineered Net Shaping, Materials, 2018, vol. 11, p. 284.

  5. Kempena, K., Thijs, L., Van Humbeeck, J., and Kruth, J.-P., Mechanical Properties of AlSi10Mg Produced by Selective Laser Melting, Phys. Proc., 2012, vol. 39, pp. 439–446.

  6. Brandl, E., Heckenberger, U., Holzinger, V., and Buchbinder, D., Additive Manufactured AlSi10Mg Samples Using Selective Laser Melting (SLM): Microstructure, High Cycle Fatigue, and Fracture Behaviour, Mater. Design, 2012, vol. 34, pp. 159–169.

  7. Buchbinder, D, Schleifenbaum, H., Heidrich, S., Meiners, W., and Bultmann, J., High Power Selective Laser Melting (HP SLM) of Aluminum Parts, Phys. Proc., 2011, vol. 13, pp. 271–278.

  8. Han, X., Zhu, H., Nie, X., Wang, G., and Zeng, X., Investigation on Selective Laser Melting AlSi10Mg Cellular Lattice Strut: Molten Pool Morphology, Surface Roughness Dimens. Accuracy. Mater., 2018, vol. 11, no. 3, pp. 392–405.

  9. Read, N., Wang, W., Essa, Kh., and Attallah, M.M., Selective Laser Melting of AlSi10Mg Alloy: Process Optimisation and Mechanical Properties Development, Mater. Design, 2015, vol. 65, pp. 417–424.

  10. Aboulkhair,N.T., Everitt, N.M., Ashcroft, I., and Tuck, Ch., Reducing Porosity in AlSi10Mg Parts Processed by Selective Laser Melting, Add. Manufact., 2014, vol. 1–4, pp. 77–86.

  11. Trevisan, F., Calignano, F., Lorusso, M., Pakkanen, J., Aversa, A., Ambrosio, E.P., Lombardi, M., Fino, P., and Manfredi, D., On the Selective Laser Melting (SLM) of the AlSi10Mg Alloy: Process, Microstructure, and Mechanical Properties, Materials, 2017, vol. 10, pp. 76–99.

  12. Prashanth, K.G., Scudino, S., Maity, T., Das, J., and Eckert, J., Is the Energy Density a Reliable Parameter for Materials Synthesis by Selective Laser Melting?, Mater. Res. Lett., 2017, vol. 5, no. 6, pp. 386–390.

Download references

Funding

Authors want to thank Regione Friuli Venezia Giulia (Project “Applicazione della tecnica additiva nella realizzazione di inserti per stampaggio a freddo” DGR 1232/2017, no. 25993) and Regione Veneto (Project FSE 2105-37-11-2018: “Hybrid manufacturing strategies through selective laser sintering for the customization of series components”) for the financial support.

Author information

Authors and Affiliations

  1. Department of Engineering and Management, University of Padova , 36100, Vicenza, Italy

    P. Ferro & R. Meneghello

  2. Department of Engineering Design and Materials, Norwegian University of Science and Technology , 7491, Trondheim, Norway

    N. Razavi & F. Berto

  3. Department of Civil, Environmental and Architectural Engineering, University of Padova , 35131, Padova, Italy

    G. Savio

Authors
  1. P. Ferro
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. Meneghello
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. N. Razavi
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. F. Berto
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. G. Savio
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to P. Ferro.

Additional information

Russian Text © The Author(s), 2019, published in Fizicheskaya Mezomekhanika, 2019, Vol. 22, No. 5, pp. 78-84.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ferro, P., Meneghello, R., Razavi, N. et al. Porosity Inducing Process Parameters in Selective Laser Melted AlSi10Mg Aluminium Alloy. Phys Mesomech 23, 256–262 (2020). https://doi.org/10.1134/S1029959920030108

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1029959920030108

Keywords

Search

Navigation