Revista: | Mexican journal of materials science and engineering |
Base de datos: | PERIÓDICA |
Número de sistema: | 000392621 |
ISSN: | 0187-5779 |
Autores: | Hernández Martínez, S.E1 Cruz Rivera, J.J1 Estrada Guel, I2 Martínez Sánchez, R2 Hernández Rivera, J.I1 |
Instituciones: | 1Universidad Autónoma de San Luis Potosí, Instituto de Metalurgia, San Luis Potosí. México 2Centro de Investigación en Materiales Avanzados S.C., Chihuahua. México |
Año: | 2016 |
Volumen: | 3 |
Número: | 1 |
Paginación: | 1-6 |
País: | México |
Idioma: | Inglés |
Tipo de documento: | Artículo |
Enfoque: | Aplicado, descriptivo |
Resumen en inglés | A metal matrix composite has been produced by mechanical milling, in an horizontal attritor, using powders of the commercial aluminum alloy 7075 (Al-Zn-Mg) as the matrix of the composite, and nanosized particles of ZrO2 were use as reinforcement. The composite was sintered and hot extruded, in order to consolidate the powders of the composite, and submitted to a heat treatment with the aim of age harden it. The Vickers hardness test was discouraging, due to there was no positive response to the aging treatment. This situation was attributed to the reaction in the process carried out at high temperature (sintering and extrusion) between the ZrO2 and the alloying elements Zn and Mg, since intermetallic compounds were found in the X-ray diffraction patterns of the composite. In this way, the matrix was depleted of Zn and Mg, leaving the matrix out of elements in solution in order to precipitate nanoparticles, which could improve the mechanical properties of the alloy, contrary situation found in the composite material |
Disciplinas: | Ingeniería |
Palabras clave: | Ingeniería de materiales, Ingeniería metalúrgica, Materiales compuestos, Aleaciones, Aluminio-Zinc-Magnesio, Matriz metálica, Nanopartículas, Oxido de circonio, Endurecimiento, Propiedades mecánicas |
Keyword: | Engineering, Materials engineering, Metallurgical engineering, Composite materials, Alloys, Aluminum-Zinc-Magnesium, Metallic matrix, Nanoparticles, Zirconium oxide, Hardening, Mechanical properties |
Texto completo: | Texto completo (Ver PDF) |