Influence of powder particle size on the mechanical properties of SiCp reinforced A.A.7075

Authors

  • M. Torralba Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
  • P. Adeva Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
  • M. Lieblich Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
  • J. Ibáñez Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
  • G. Caruana Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
  • A. García-Escorial Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)
  • G. González-Doncel Centro Nacional de Investigaciones Metalúrgicas, CENIM (CSIC)

DOI:

https://doi.org/10.3989/revmetalm.1998.v34.iExtra.774

Keywords:

Composites, Al7075-SiCp, Particle size, Rapid solidification, Ball mili

Abstract


The influence of powder particle size of 7075 aluminum on the room temperature mechanical properties of 7075-15 vol % SiCp has been studied. The aluminum powder was obtained by argon atomization under rapid solidification conditions. Composite materials were prepared from three different particle sizes, namely: < 50 μm, 50-100 μm and 100-200 μm. These powders were blended with 15 vol % of SiC particles < 5 μm in size by ball milling and then, hot extruded. The best properties of the resulting composites correspond to the material prepared from the smallest particle size. For this case, a clear improvement of the mechanical properties, except for ductility, is obtained. This is attributed to a more homogeneous distribution of the reinforcing SiC particles.

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Published

1998-05-30

How to Cite

Torralba, M., Adeva, P., Lieblich, M., Ibáñez, J., Caruana, G., García-Escorial, A., & González-Doncel, G. (1998). Influence of powder particle size on the mechanical properties of SiCp reinforced A.A.7075. Revista De Metalurgia, 34(Extra), 371–375. https://doi.org/10.3989/revmetalm.1998.v34.iExtra.774

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Articles