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Vol. 52 No. 2 (2016)
Vol. 52 No. 2 (2016)

Wear Resistance Analysis of the Aluminum 7075 Alloy and the Nanostructured Aluminum 7075 – Silver Nanoparticles Composites

Ruben Flores-Campos
Instituto Tecnológico y de Estudios Superiores de Monterrey Campus Saltillo
Rosa Hilda Estrada-Ruiz
Gerardo Alejandro Treviño-Rodríguez
Jose Martín Herrera-Ramírez
Roberto Martínez-Sánchez
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Published

2016-10-28

Section

Original Scientific Paper

How to Cite

Wear Resistance Analysis of the Aluminum 7075 Alloy and the Nanostructured Aluminum 7075 – Silver Nanoparticles Composites. (2016). Journal of Mining and Metallurgy, Section B: Metallurgy, 52(2), 163-170. https://test.aseestant.ceon.rs/index.php/jmm/article/view/6668
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Abstract

Nanostructured composites of the aluminum 7075 alloy and carbon-coated silver nanoparticles were synthetized by the mechanical milling technique using a high-energy mill SPEX 8000M; the powders generated were compacted, sintered and hot-extruded to produce 1 cm-diameter bars. The composites were then subjected to a wear test using a pin-on-disc device to validate the hypothesis that second phase-ductile nanometric particles homogenously distributed throughout the metal-matrix improve the wear resistance of the material. It was found that silver nanoparticles prevent the wear of the material by acting as an obstacle to dislocations movement during the plastic deformation of the contact surface, as well as a solid lubricant when these are separated from the metal-matrix.

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