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Mechanical characterization of B4C reinforced aluminum matrix composites produced by squeeze casting

Published online by Cambridge University Press:  05 January 2017

Mehmet Ipekoglu*
Affiliation:
Department of Mechatronic Systems Engineering, Faculty of Engineering, Turkish-German University, Beykoz 34820, Istanbul, Turkey
Amin Nekouyan
Affiliation:
Department of Mechanical Engineering, Faculty of Engineering, Bogazici University, Bebek 34342, Istanbul, Turkey
Onder Albayrak
Affiliation:
Department of Mechanical Engineering, Faculty of Engineering, Mersin University, Yenisehir 33343, Mersin, Turkey
Sabri Altintas
Affiliation:
Department of Mechanical Engineering, Faculty of Engineering, Bogazici University, Bebek 34342, Istanbul, Turkey
*
a)Address all correspondence to this author. e-mail: ipekoglu@tau.edu.tr
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Abstract

Boron carbide (B4C) ceramic particles were used as reinforcement material to produce aluminum (Al) matrix composites by squeeze casting method. Four different B4C contents as 0, 3, 5, and 10 wt%, and three different squeeze pressures as 0, 75, and 150 MPa were used in which the samples consisted of pure Al without B4C and the samples obtained without applying pressure were used as control samples. To determine the effect of squeezing pressure and the amount of B4C added on machinability and mechanical properties, average chip length and surface roughness of the samples were evaluated and hardness measurements were accomplished, yield and ultimate tensile strengths were determined, respectively. Also, the changes in density and microstructure were investigated. B4C reinforcement was found to decrease the average chip length and density of the samples while increasing the hardness and surface roughness. On the other hand, application of squeeze pressure had a positive effect on the densification and mechanical properties of the samples.

Type
Articles
Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Michele Manuel

References

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