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 language | English |
|---|---|
| Pages (from-to) | 255-263 |
| Number of pages | 9 |
| Journal | Advanced Composite Materials: The Official Journal of the Japan Society of Composite Materials |
| Volume | 10 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - 2001 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Fabrication of aluminum borate whisker reinforced AZ91D magnesium alloy composites by semi-solid process and their mechanical properties
AU - Yoshida, Makoto
AU - Takeuchi, Shingo
AU - Pan, Jin
AU - Sasaki, Gen
AU - Fuyama, Nobuyuki
AU - Fujii, Toshio
AU - Fukunaga, Hideharu
PY - 2001
Y1 - 2001
N2 - 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.
AB - 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.
KW - Metal matrix composites
KW - Semi-solid
KW - Squeeze casting
UR - http://www.scopus.com/inward/record.url?scp=0035708769&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035708769&partnerID=8YFLogxK
U2 - 10.1163/156855101753396735
DO - 10.1163/156855101753396735
M3 - Article
AN - SCOPUS:0035708769
VL - 10
SP - 255
EP - 263
JO - Advanced Composite Materials
JF - Advanced Composite Materials
SN - 0924-3046
IS - 2-3
ER -