Authors:
Ananthakrishna Sajithkumar (1,2,3), Jordi Pijuan (1), Maria Niubó (2), Yunhui Chen (3), Mark Easton (3)
1- Eurecat, Centre Tecnològic de Catalunya, Unit of Metallic and Ceramic Materials, Spain
2- Department of Mining, Industrial and ICT Engineering, Universitat Politècnica de Catalunya, Spain
3- Royal Melbourne Institute of Technology, Melbourne, Australia
Abstract:
Centrifugal atomisation efficiently produces spherical metal powders. Although less understood, internal porosity in metal powders is crucial in determining quality in metal additive manufacturing (AM). In this work, the Al6060 alloy was atomised via centrifugal atomisation under various conditions. The atomisation pressure and holding time during the melting stage were investigated as processing parameters to study their influence on internal pores in the produced powders. Cross-sections were analysed to understand the internal porosity of the alloy powders. Image analysis was performed to quantify and estimate the pore morphology. Preliminary results suggest that in the finer size fraction of powder, reducing the atomisation pressure and holding time can help in reducing the pores.
DOI:
https://doi.org/10.59499/EP246278563
