Processing and Manufacturing of Metal Matrix Aluminum Alloys Composites Reinforced by Silicon Carbide and Alumina through Powder Metallurgy Techniques

Abstract:

Composites are combinations of two materials in which one of the materials, called the reinforcing phase, is in the form of fibers, sheets, or particles and is embedded in the other materials called the matrix phase. If the composite is designed and fabricated correctly, it combines the strength of the reinforcement with the toughness of the matrix to achieve a combination of desirable properties not available in any single conventional material. In this work of research aluminium alloy AA6061 was reinforced by 5, 10 and 15% (in mass %) of SiC and Al₂O₃ by mechanical alloying in a vibratory type SPEX mill, cold uniaxial compaction and vacuum sintering in order to investigate the influence of the particulate phase in the microstructure and mechanical properties of the composites obtained. The microstructure of the powders and the sintered materials were evaluated by SEM and the hardness was evaluated by hardness tests.

• Periodical: Materials Science Forum (Volumes 727-728)
• Pages: 254-258
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.727-728.254
• Online since: August 2012
• Authors: Everthon Rodrigues de Araujo, Sérvulo José Ferreira Alves, Francisco Ambrozio Filho, Severino Leopoldino Urtiga Filho, Oscar Olimpio de Araújo Filho
• Keywords: AA6061 Aluminum Alloy Metal Matrix Composites, Mechanical Alloying, Powder metallurgy, Sintering

References

[1] Davis RM, Mcdermott B, Koch CC. Mechanical alloying of brittle materials. Metall Trans A 1988; 19A: 2867.

[2] Arik H. Production and characterization of in situ Al4C3 reinforced aluminum-based composite produced by the mechanical alloying technique. Mater Des 2004; 25: 31.

DOI: 10.1016/s0261-3069(03)00163-8

[3] S. Kamrani, R. Riedel, S. M. Seyed Reihani, H.J. Kleebe, in: Effect of reinforcement volume fraction on the mechanical properties of Al SiC nanocomposites produced by mechanical alloying and consolidation. Journal of Composite Materials, 313: 44, (2010).

DOI: 10.1177/0021998309347570

[4] M. A. P. Santos, C. A. Costa, in: Moagem de pós de carboneto de silício em moinho planetário. Cerâmica 51: 392-397, (2005).

DOI: 10.1590/s0366-69132005000400014

[5] K. R. Ahmad, W. J. Lee, R. M. Zaki, M. N. Mazlee, M. W. M. Fitri, S. S. Rizam, J. B. Shumsul, in: The microstructure and properties of aluminium composite reinforced with 65 µm alumina particles via powder metallurgy. ICoSM, (2007).

[6] C. Dhadsanadhep, T. Luangvaranunt, J. Umeda and K. Kondoh, in: Fabrication of Al/Al2O3 Composite by Powder Metallurgy Method from Aluminum and Rice Husk Ash. Journal of Metals, Materials and Minerals. Vol. 18 No. 2 pp.99-102, (2008).

DOI: 10.2320/matertrans.m2009429

[7] M. Adamiak, in: Selected properties of the aluminium alloy base composites reinforced with intermetallic particles. Journal of Achievements in Materials and Manufacturing Engineering Vol. 14 (2006) 1-2.

[8] M. Tabandeh Khorshid, S. A. Jenabali Jahromi, M. M. Moshksar, in: Mechanical properties of tri-modal Al matrix composites reinforced by nano- and submicron-sized Al2O3 particulates developed by wet attrition milling and hot extrusion. Materials and Design 31 (2010).

DOI: 10.1016/j.matdes.2010.02.047

[9] K. Zilnyk, O. M. Cintho, in: Influência da moagem de alta energia na porosidade de produtos da metalurgia do pó. 4º Encontro de Engenharia e Tecnologia dos Campos Gerais (2008).

DOI: 10.26512/2016.10.d.22414