Microstructure and phases of As-cast and heat-treated Al-Si-Mg/AlN composites prepared by stir casting

A. R. Daud, M. N. Wahab

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Al-Si-Mg/AlN composites were prepared by stir casting technique. The amount of AlN added to Al-Si-Mg alloy was from 2 to 10 wt%. As-cast composites were solutionised at 540 °C for 4 h, quenched in warm water, 60 °C then artificially aged at 180 °C for 4 h. The microstructure of Al-Si-Mg matrix alloy contained dendritic α-Al, needle-like Si and very little inter-metallic compounds. As-cast Al-Si-Mg/AlN composites have rounded α-Al phase and needle-like Si where AlN particles dispersed surrounding α-Al. Needle-like Si transformed to spheroid after artificial aging. The size of α-Al phases of heat-treated composites containing 2 and 5 wt% AlN was bigger than that of as-cast composites whereas the heat-treated Al-Si-Mg/10% AlN composite has thin and elongated dendritic α-Al phases, and larger AlN particles.

    Original languageEnglish
    Title of host publicationAdvanced Materials Research
    Pages155-159
    Number of pages5
    Volume501
    DOIs
    Publication statusPublished - 2012
    Event26th Regional Conference on Solid State Science and Technology, RCSSST 2011 - Seremban, Negeri Sembilan
    Duration: 22 Nov 201124 Nov 2011

    Publication series

    NameAdvanced Materials Research
    Volume501
    ISSN (Print)10226680

    Other

    Other26th Regional Conference on Solid State Science and Technology, RCSSST 2011
    CitySeremban, Negeri Sembilan
    Period22/11/1124/11/11

    Fingerprint

    Casting
    Microstructure
    Composite materials
    Needles
    Metallic compounds
    Hot Temperature
    Aging of materials
    Water

    Keywords

    • Al-Si-Mg alloy
    • Composite
    • Intermetallic compound
    • Microstructure

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Daud, A. R., & Wahab, M. N. (2012). Microstructure and phases of As-cast and heat-treated Al-Si-Mg/AlN composites prepared by stir casting. In Advanced Materials Research (Vol. 501, pp. 155-159). (Advanced Materials Research; Vol. 501). https://doi.org/10.4028/www.scientific.net/AMR.501.155

    Microstructure and phases of As-cast and heat-treated Al-Si-Mg/AlN composites prepared by stir casting. / Daud, A. R.; Wahab, M. N.

    Advanced Materials Research. Vol. 501 2012. p. 155-159 (Advanced Materials Research; Vol. 501).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Daud, AR & Wahab, MN 2012, Microstructure and phases of As-cast and heat-treated Al-Si-Mg/AlN composites prepared by stir casting. in Advanced Materials Research. vol. 501, Advanced Materials Research, vol. 501, pp. 155-159, 26th Regional Conference on Solid State Science and Technology, RCSSST 2011, Seremban, Negeri Sembilan, 22/11/11. https://doi.org/10.4028/www.scientific.net/AMR.501.155
    Daud AR, Wahab MN. Microstructure and phases of As-cast and heat-treated Al-Si-Mg/AlN composites prepared by stir casting. In Advanced Materials Research. Vol. 501. 2012. p. 155-159. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.501.155
    Daud, A. R. ; Wahab, M. N. / Microstructure and phases of As-cast and heat-treated Al-Si-Mg/AlN composites prepared by stir casting. Advanced Materials Research. Vol. 501 2012. pp. 155-159 (Advanced Materials Research).
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