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The role of reinforcement orientation on the damage evolution of short fibre reinforced metal matrix composite under compression

  • In the present study, internal damage to an AlSi12CuMgNi alloy reinforced with planar random Al2O3 short fibres was investigated after compression testing. Due to the alloy composition, this composite contains a second reinforcement phase in the form of eutectic Si, which builds interpenetrated networks in the volume and increases the creep resistance and load-bearing capacity of the material. Materials with their fibre plane parallel and transversal to the load direction were characterized in order to investigate the dependence of load partition and damage on fibre plane orientation. In-situ compression testing during neutron diffraction measurements showed that internal damage is strongly influenced by the load partition between matrix and reinforcement. Moreover, micro-computed tomography was performed in the same material after ex-situ compression for damage analysis. In the case of a fibre plane perpendicular to the applied load, breakage and interconnected cracks appeared in aIn the present study, internal damage to an AlSi12CuMgNi alloy reinforced with planar random Al2O3 short fibres was investigated after compression testing. Due to the alloy composition, this composite contains a second reinforcement phase in the form of eutectic Si, which builds interpenetrated networks in the volume and increases the creep resistance and load-bearing capacity of the material. Materials with their fibre plane parallel and transversal to the load direction were characterized in order to investigate the dependence of load partition and damage on fibre plane orientation. In-situ compression testing during neutron diffraction measurements showed that internal damage is strongly influenced by the load partition between matrix and reinforcement. Moreover, micro-computed tomography was performed in the same material after ex-situ compression for damage analysis. In the case of a fibre plane perpendicular to the applied load, breakage and interconnected cracks appeared in a significantly higher volume fraction than with a fibre plane parallel to load.zeige mehrzeige weniger

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  • Mishurova_8.5_Poster_RACIRI2.pdf
    eng

    Poster für RACIRI Summer School

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Metadaten
Autor*innen:Tatiana MishurovaORCiD
Koautor*innen:Sandra Cabeza, Giovanni Bruno
Dokumenttyp:Posterpräsentation
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2016
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Freie Schlagwörter:Computed tomography; Load transfer; Metal matrix composite; Neutron diffraction
Veranstaltung:RACIRI Summer School
Veranstaltungsort:Repino, Russia
Beginndatum der Veranstaltung:22.08.2016
Enddatum der Veranstaltung:28.08.2016
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:04.11.2016
Referierte Publikation:Nein
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