Interfacial reaction and its effect on strength of Al18B4O33/Al composites

J. Pan, G. Sasaki, L. J. Yao, Makoto Yoshida, H. Fukunaga

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Aluminium alloy 6061, AC8A, Al-1Mg, Al-9Cu and pure aluminium composites reinforced with aluminium borate whiskers were fabricated by a squeeze casting process. The interfacial reaction in the composites and its effect on the bending strength are discussed, together with the results from SEM, TEM, and X-ray diffraction. A slight interfacial reaction is favourable for composite strength as it has the effect of anchoring the whiskers. A T6 treatment can enhance the strength of an Al-9Cu matrix composite, but is not efficient for magnesium containing 6061 and AC8A matrix composites. Furthermore, if heated at temperatures higher than 793 K for a long time, the composite strength drops rapidly owing to whisker damage and shortening during the interfacial reaction. It is suggested that the interface in an Al18B4O33/Al alloy composite is stable below 623 K which is the temperature requirement for automobile engine components.

Original languageEnglish
Pages (from-to)1044-1048
Number of pages5
JournalMaterials Science and Technology
Volume15
Issue number9
Publication statusPublished - 1999 Sep
Externally publishedYes

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Surface chemistry
composite materials
Composite materials
Aluminum
automobile engines
squeeze casting
Squeeze casting
Automobile engines
aluminum
Borates
flexural strength
matrices
borates
Bending strength
aluminum alloys
Magnesium
magnesium
Aluminum alloys
Transmission electron microscopy
damage

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

Interfacial reaction and its effect on strength of Al18B4O33/Al composites. / Pan, J.; Sasaki, G.; Yao, L. J.; Yoshida, Makoto; Fukunaga, H.

In: Materials Science and Technology, Vol. 15, No. 9, 09.1999, p. 1044-1048.

Research output: Contribution to journalArticle

Pan, J, Sasaki, G, Yao, LJ, Yoshida, M & Fukunaga, H 1999, 'Interfacial reaction and its effect on strength of Al18B4O33/Al composites', Materials Science and Technology, vol. 15, no. 9, pp. 1044-1048.
Pan, J. ; Sasaki, G. ; Yao, L. J. ; Yoshida, Makoto ; Fukunaga, H. / Interfacial reaction and its effect on strength of Al18B4O33/Al composites. In: Materials Science and Technology. 1999 ; Vol. 15, No. 9. pp. 1044-1048.
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