Fabrication of aluminum borate whisker reinforced AZ91D magnesium alloy composites by semi-solid process and their mechanical properties

Makoto Yoshida, Shingo Takeuchi, Jin Pan, Gen Sasaki, Nobuyuki Fuyama, Toshio Fujii, Hideharu Fukunaga

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In order to develop a light weight piston for an automobile engine, aluminum borate whisker reinforced AZ91D magnesium alloy composites were fabricated by a semi-solid material process using squeeze casting. By controlling the solid fraction, fs, and the rate of the infiltration into the preform, we succeeded in reinforcing a part of the cast alloy without deformation of the preform. The tensile strength of the alloy/composites interface fabricated by semi-solid (50% fs, solid fraction in the semi-solid slurry) process was 120 MPa, and it was equal to the strength by conventional 0% fs process. However, the flexural strength of the composite by the 50% fs process was about 10% lower than the strength of that from the 0% fs process, 498 MPa. After solid solution and aging treatment, the bending strength of the composites in both 0% and 50% fs process was decreased. This might be caused by the notch effect of Mg2Si compound produced between SiO2 binder of the preform and magnesium during heat treatment.

Original languageEnglish
Pages (from-to)255-263
Number of pages9
JournalAdvanced Composite Materials: The Official Journal of the Japan Society of Composite Materials
Volume10
Issue number2-3
DOIs
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

Borates
Magnesium alloys
Aluminum
Fabrication
Mechanical properties
Composite materials
Bending strength
Squeeze casting
Automobile engines
Infiltration
Pistons
Magnesium
Binders
Solid solutions
Tensile strength
Aging of materials
Heat treatment

Keywords

  • Metal matrix composites
  • Semi-solid
  • Squeeze casting

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Fabrication of aluminum borate whisker reinforced AZ91D magnesium alloy composites by semi-solid process and their mechanical properties. / Yoshida, Makoto; Takeuchi, Shingo; Pan, Jin; Sasaki, Gen; Fuyama, Nobuyuki; Fujii, Toshio; Fukunaga, Hideharu.

In: Advanced Composite Materials: The Official Journal of the Japan Society of Composite Materials, Vol. 10, No. 2-3, 2001, p. 255-263.

Research output: Contribution to journalArticle

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AU - Pan, Jin

AU - Sasaki, Gen

AU - Fuyama, Nobuyuki

AU - Fujii, Toshio

AU - Fukunaga, Hideharu

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