Mechanically milled aluminium matrix composites reinforced with halloysite nanotubes

• Autorzy: Dobrzański, L. A. , Tomiczek, B. , Adamiak, M. , Gołombek, K.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The present work describes fabrication of aluminium AlMg1SiCu matrix composite materials reinforced with halloysite nanotubes by powder metallurgy techniques and hot extrusion. Design/methodology/approach: Mechanical milling, compacting and hot extrusion successively are considering as a method for manufacturing metal composite powders with a controlled fine microstructure and enhanced mechanical properties. It is possible by the repeated welding and fracturing of powders particles mixture in a highly energetic ball mill. Findings: The milling process has a huge influence on the properties of powder materials, changing the spherical morphology of as-received powder during milling process to flattened one due to particle deformation followed by welding and fracturing particles of deformed and hardened enough which allows to receive equiaxial particles morphology again. The investigation shows that so called brittle mineral particles yields to plastic deformation as good as ductile aluminium alloy particles. That indicates that the halloysite powder can play a role of the accelerator during mechanical milling. High energy ball milling as a method of mechanical milling improves the distribution of the halloysite reinforcing particles throughout the aluminium matrix, simultaneously reducing the size of particles. The apparent density changes versus milling time can be used to control the composite powders production by mechanical milling and the presence of halloysite reinforcements particles accelerates the mechanical milling process. Research limitations/implications: Contributes to knowledge about technology, structure and properties of aluminium alloy matrix composite material reinforced with mineral nanoparticles. Practical implications: Conducted research shows that applied technology allows obtaining very good microstructural characteristics. Originality/value: It has been confirmed that halloysite nanotubes can be applied as an effective reinforcement in the aluminium matrix composites. Deformation, grain size reduction and dispersion conduce to hardening of the composite powders. Mechanical milling cause a high degree of deformation, decrease the grain size even to nanoscale and create an enormously uniform distribution of reinforcing phases or oxides in the structure of the metal.

Słowa kluczowe

EN

aluminium matrix composites; mechanical milling; halloysite; hot extrusion

• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2012
• Tom: Vol. 55, nr 2
• Strony: 654--660
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Dobrzański, L. A.

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

autor

Tomiczek, B.

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Adamiak, M.

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Gołombek, K.

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

• [1] E.M. Ruiz-Navas, J.B. Fogagnolo, F. Velasco, J.M. Ruiz-Prieto, L. Froyen, One step production of aluminium matrix composite powders by mechanical alloying, Composites A37 (2006) 2114-2120.
• [2] J.W. Kaczmar, K. Naplocha, Wear behaviour of composite materials based on 2024 Al-alloy reinforced with 8 alumina fibres, Journal of Achievements in Materials and Manufacturing Engineering 43/1 (2010) 88-93.
• [3] G. Matula, Carbide alloyed composite manufactured with the Powder Injection Moulding method and sinterhardened, Journal of Achievements in Materials and Manufacturing Engineering 42/1-2 (2010) 164-171.
• [4] M. Adamiak, Selected properties of the aluminium alloy base composites reinforced with intermetallic particles, Journal of Achievements in Materials and Manufacturing Engineering 14/1-2 (2006) 43-47.
• [5] P. Sakiewicz, R. Nowosielski, W. Pilarczyk, K. Gołombek, M. Lutyński, Selected properties of the halloysite as a component of Geosynthetic Clay Liners (GCL), Journal of Achievements in Materials and Manufacturing Engineering 48/2 (2011) 177-191.
• [6] L.A. Dobrzański, B. Tomiczek, M. Adamiak, Manufacturing of EN AW6061 matrix composites reinforced by halloysite nanotubes, Journal of Achievements in Materials and Manufacturing Engineering 49/1 (2011) 82-89
• [7] P.S. Gilman, W.D. Nix, The structure and properties of aluminium alloys produced by mechanical alloying: powder processing and resultant powder structures, Metallurgical Transactions A 12 (1981) 813.
• [8] R. Sankar, S Paramanand, Synthesis of 7075 Al/SiC particulate composite powders by mechanical alloying, Materials Letters 36 (1998) 201-205.
• [9] J.B. Fogagnolo, F. Velasco, M.H. Robert, J.M. Torralba, Effect of mechanical alloying on the morphology, microstructure and properties of aluminium matrix composite powders, Materials Science and Engineering A342 (2003) 131-/143.