The effects of lithium content on the ageing characteristic and notched tensile properties of particulate reinforced Al-Li-Cu-Mg-Zr-based metal matrix composites (MMCs) have been investigated. MMC sheet containing 20 wt.-% silicon carbide particulate produced by a conventional powder metallurgy route aged at a similar rate as unreinforced sheet, and the highest strengths were achieved in samples containing 2 to 2.5 wt.-% Li. A proprietary processed 8090 Al-Li-alloy MMc sheet aged more rapidly, however, and gave considerably higher strengths. The toughness of Al-Li-Cu-Mg-Zr-MMC sheet, as indicated by the notched tensile behaviour, can be improved by reducing the lithium content albeit at the expense of strength.


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    Titel :

    Ageing behaviour and toughness of silicon carbide particulate reinforced Al-Li-Cu-Mg-Zr metal matrix composites


    Weitere Titelangaben:

    Alterungsverhalten und Zähigkeit von Verbundwerkstoffen bestehend aus mit Siliciumcarbidteilchen verstärkten Al-Li-Cu-Mg-Zr-Legierungen


    Beteiligte:

    Erschienen in:

    Journal of Materials Science ; 30 , 9 ; 2263-2268


    Erscheinungsdatum :

    1995


    Format / Umfang :

    6 Seiten, 7 Bilder, 2 Tabellen, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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