Development of a Cast Al-Mg2Si-Si In Situ Composite: Microstructure, Heat Treatment, and Mechanical Properties
| dc.contributor.author | Georgatis, E. | en |
| dc.contributor.author | Lekatou, A. | en |
| dc.contributor.author | Karantzalis, A. E. | en |
| dc.contributor.author | Petropoulos, H. | en |
| dc.contributor.author | Katsamakis, S. | en |
| dc.contributor.author | Poulia, A. | en |
| dc.date.accessioned | 2015-11-24T17:33:12Z | |
| dc.date.available | 2015-11-24T17:33:12Z | |
| dc.identifier.issn | 1059-9495 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/13829 | |
| dc.rights | Default Licence | - |
| dc.subject | aging | en |
| dc.subject | heat extraction bed | en |
| dc.subject | hypereutectic al-mg2si | en |
| dc.subject | in situ composite | en |
| dc.subject | investment casting | en |
| dc.subject | solution treatment | en |
| dc.subject | metal-matrix composites | en |
| dc.subject | electron-microscope | en |
| dc.subject | eutectic silicon | en |
| dc.subject | nucleating role | en |
| dc.subject | primary mg2si | en |
| dc.subject | alloys | en |
| dc.subject | solidification | en |
| dc.subject | intermetallics | en |
| dc.subject | strontium | en |
| dc.subject | aluminum | en |
| dc.title | Development of a Cast Al-Mg2Si-Si In Situ Composite: Microstructure, Heat Treatment, and Mechanical Properties | en |
| heal.abstract | An Al-11Mg(2)Si-Si in situ composite was prepared by a modified investment casting technique that employs sub-pressure for castability improvement and immersion of ceramic shell molds in fluidized beds of silica sand and iron particles for heat extraction improvement. The microstructure of the as-cast composite is explained according to the pseudoeutectic Al-Mg2Si phase diagram. The positive effect of a decreased number of mold investment layers and cooling assisted by immersion of the mold in a metallic bed on the tensile strength and hardness of the heat treated composite is noted. A minor presence of Fe in the master alloys constitutes an essential factor for the brittleness of the composite. Solution treatment notably improves the tensile strength of the composite; however, prolonged treatment deteriorates its ductility. The effect of time and temperature of the aging treatment on the hardness of the composite is investigated. The positive influence of cooling assisted by a metallic fluidized bed on the effectiveness of the aging treatment is noticed. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | DOI 10.1007/s11665-012-0337-6 | - |
| heal.identifier.secondary | <Go to ISI>://000314899800011 | - |
| heal.journalName | Journal of Materials Engineering and Performance | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2013 | - |
| heal.publisher | Springer | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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