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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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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