Effect of process parameters on the density and porosity of laser melted AlSi10Mg/SiC metal matrix composite
| Autor: | Chike F. Oduoza, Mark Stanford, Lijuan Zhang, Omotoyosi H. Famodimu |
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| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Materials science Mechanical Engineering Metal matrix composite Alloy chemistry.chemical_element 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Laser law.invention 020901 industrial engineering & automation chemistry Aluminium law visual_art engineering visual_art.visual_art_medium Process window Ceramic Selective laser melting Composite material 0210 nano-technology Porosity |
| Zdroj: | Frontiers of Mechanical Engineering. 13:520-527 |
| ISSN: | 2095-0241 2095-0233 |
| DOI: | 10.1007/s11465-018-0521-y |
| Popis: | Laser melting of aluminium alloy—AlSi10Mg has increasingly been used to create specialised products in various industrial applications, however, research on utilising laser melting of aluminium matrix composites in replacing specialised parts have been slow on the uptake. This has been attributed to the complexity of the laser melting process, metal/ceramic feedstock for the process and the reaction of the feedstock material to the laser. Thus, an understanding of the process, material microstructure and mechanical properties is important for its adoption as a manufacturing route of aluminium metal matrix composites. The effects of several parameters of the laser melting process on the mechanical blended composite were thus investigated in this research. This included single track formations of the matrix alloy and the composite alloyed with 5% and 10% respectively for their reaction to laser melting and the fabrication of density blocks to investigate the relative density and porosity over different scan speeds. The results from these experiments were utilised in determining a process window in fabricating near-fully dense parts. |
| Databáze: | OpenAIRE |
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