Processing and properties of metal matrix composites synthesized by SHS

Simo-Pekka Hannula, Pekka Lintula, Pertti Lintunen, Tomi Lindroos

    Research output: Contribution to journalArticleScientificpeer-review

    3 Citations (Scopus)

    Abstract

    Self-propagating high-temperature synthesis (SHS) is a flexible process to produce novel materials with useful properties. SHS is based on highly exothermic chemical reactions between starting material powders and it can be used to produce e.g. ceramic materials, metal matrix composites (MMC), and intermetallics such as aluminides, silicides etc. This paper focuses on the near net shape MMC's produced by SHS for various applications and summarises their processing and most important properties. The process steps for production of near net shape SHS components comprise of mixing the starting material powders, green compaction of the powder to a mould, ignition of the SHS-reaction, synthesis of the material, pressure densification and controlled cooling. Machining may be performed, if e.g. high quality surface finish is needed. There are several systems that have been studied so far. In this paper we present results on composites based on TiC- reinforcements in a metal matrix. Matrixes include Ni, NiMo, NiMoCr and various commercial stainless steels and high temperature alloys. SHS MMC's have been tailored for different industrial applications, where wear and corrosion resistance is important. Because of the excellent fracture toughness of SHS materials as compared to other hard materials they have proven to be useful also for advanced armour applications.
    Original languageEnglish
    Pages (from-to)1971-1978
    Number of pages8
    JournalMaterials Science Forum
    Volume426-432
    Issue number7
    DOIs
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    metal matrix composites
    Metals
    Composite materials
    synthesis
    Processing
    Powders
    aluminides
    armor
    Silicides
    silicides
    Armor
    Stainless Steel
    heat resistant alloys
    densification
    Ceramic materials
    matrices
    reinforcement
    fracture strength
    wear resistance
    Superalloys

    Keywords

    • self-propagating high-temperature synthesis (SHS)
    • metal matrix composites (MMC)
    • mechanical properties
    • corrosion
    • wear
    • processing
    • applications
    • armor plates
    • machine parts
    • ProperPart

    Cite this

    Hannula, Simo-Pekka ; Lintula, Pekka ; Lintunen, Pertti ; Lindroos, Tomi. / Processing and properties of metal matrix composites synthesized by SHS. In: Materials Science Forum. 2003 ; Vol. 426-432, No. 7. pp. 1971-1978.
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    abstract = "Self-propagating high-temperature synthesis (SHS) is a flexible process to produce novel materials with useful properties. SHS is based on highly exothermic chemical reactions between starting material powders and it can be used to produce e.g. ceramic materials, metal matrix composites (MMC), and intermetallics such as aluminides, silicides etc. This paper focuses on the near net shape MMC's produced by SHS for various applications and summarises their processing and most important properties. The process steps for production of near net shape SHS components comprise of mixing the starting material powders, green compaction of the powder to a mould, ignition of the SHS-reaction, synthesis of the material, pressure densification and controlled cooling. Machining may be performed, if e.g. high quality surface finish is needed. There are several systems that have been studied so far. In this paper we present results on composites based on TiC- reinforcements in a metal matrix. Matrixes include Ni, NiMo, NiMoCr and various commercial stainless steels and high temperature alloys. SHS MMC's have been tailored for different industrial applications, where wear and corrosion resistance is important. Because of the excellent fracture toughness of SHS materials as compared to other hard materials they have proven to be useful also for advanced armour applications.",
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    author = "Simo-Pekka Hannula and Pekka Lintula and Pertti Lintunen and Tomi Lindroos",
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    Processing and properties of metal matrix composites synthesized by SHS. / Hannula, Simo-Pekka; Lintula, Pekka; Lintunen, Pertti; Lindroos, Tomi.

    In: Materials Science Forum, Vol. 426-432, No. 7, 2003, p. 1971-1978.

    Research output: Contribution to journalArticleScientificpeer-review

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