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Title: Microstructure and mechanical properties of 7075 aluminum alloy nanostructured composites processed by mechanical milling and indirect hot extrusion

Abstract

Nanostructured composites of 7075 aluminum alloy and carbon coated silver nanoparticles were produced by mechanical milling and indirect hot extrusion. The milling products were obtained in a high energy SPEX ball mill, and then were compacted by uniaxial load and pressure-less sintered under argon atmosphere. Finally, the sintered product was hot extruded. Carbon coated silver nanoparticles were well distributed in the matrix of the extruded material. Tensile tests were carried out to corroborate the hypothesis that second phase particles, well dispersed in the matrix, improve the strength of the material. High resolution transmission electron microscopy was employed to locate and make sure that the silver nanoparticles were homogeneously and finely dispersed. Highlights: Black-Right-Pointing-Pointer 7075 Al nanostructured composites can be produced by mechanical milling. Black-Right-Pointing-Pointer Carbon coated silver nanoparticles are well dispersed into aluminum matrix. Black-Right-Pointing-Pointer Ductile Ag-C NP's improve the mechanical properties of the 7075 Al-alloy. Black-Right-Pointing-Pointer Ag-C NP's content has an important effect in the particle and crystallite size. Black-Right-Pointing-Pointer Ag-C NP's keep their morphology after milling and conformation processes.

Authors:
 [1];  [1];  [1];  [1]
  1. Centro de Investigacion en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnologia, Miguel de Cervantes No. 120, CP 31109, Chihuahua, Chih., Mexico (Mexico)
Publication Date:
OSTI Identifier:
22066405
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 63; Journal Issue: Complete; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM; ALUMINIUM ALLOYS; CARBON; COMPOSITE MATERIALS; EXTRUSION; IMPACT STRENGTH; MATRIX MATERIALS; MICROSTRUCTURE; MILLING; MORPHOLOGY; NANOSTRUCTURES; PARTICLES; POWDER METALLURGY; SILVER; TENSILE PROPERTIES; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Flores-Campos, R, Tecnologico de Monterrey Campus Saltillo, Departamento de Ingenieria, Prol. Juan de la Barrera No. 1241 Ote., Col. Cumbres, CP 25270, Saltillo, Coah., Mexico, Estrada-Guel, I, Miki-Yoshida, M, Martinez-Sanchez, R, and Herrera-Ramirez, J.M., E-mail: martin.herrera@cimav.edu.mx. Microstructure and mechanical properties of 7075 aluminum alloy nanostructured composites processed by mechanical milling and indirect hot extrusion. United States: N. p., 2012. Web. doi:10.1016/J.MATCHAR.2011.10.014.
Flores-Campos, R, Tecnologico de Monterrey Campus Saltillo, Departamento de Ingenieria, Prol. Juan de la Barrera No. 1241 Ote., Col. Cumbres, CP 25270, Saltillo, Coah., Mexico, Estrada-Guel, I, Miki-Yoshida, M, Martinez-Sanchez, R, & Herrera-Ramirez, J.M., E-mail: martin.herrera@cimav.edu.mx. Microstructure and mechanical properties of 7075 aluminum alloy nanostructured composites processed by mechanical milling and indirect hot extrusion. United States. https://doi.org/10.1016/J.MATCHAR.2011.10.014
Flores-Campos, R, Tecnologico de Monterrey Campus Saltillo, Departamento de Ingenieria, Prol. Juan de la Barrera No. 1241 Ote., Col. Cumbres, CP 25270, Saltillo, Coah., Mexico, Estrada-Guel, I, Miki-Yoshida, M, Martinez-Sanchez, R, and Herrera-Ramirez, J.M., E-mail: martin.herrera@cimav.edu.mx. Sun . "Microstructure and mechanical properties of 7075 aluminum alloy nanostructured composites processed by mechanical milling and indirect hot extrusion". United States. https://doi.org/10.1016/J.MATCHAR.2011.10.014.
@article{osti_22066405,
title = {Microstructure and mechanical properties of 7075 aluminum alloy nanostructured composites processed by mechanical milling and indirect hot extrusion},
author = {Flores-Campos, R and Tecnologico de Monterrey Campus Saltillo, Departamento de Ingenieria, Prol. Juan de la Barrera No. 1241 Ote., Col. Cumbres, CP 25270, Saltillo, Coah., Mexico and Estrada-Guel, I and Miki-Yoshida, M and Martinez-Sanchez, R and Herrera-Ramirez, J.M., E-mail: martin.herrera@cimav.edu.mx},
abstractNote = {Nanostructured composites of 7075 aluminum alloy and carbon coated silver nanoparticles were produced by mechanical milling and indirect hot extrusion. The milling products were obtained in a high energy SPEX ball mill, and then were compacted by uniaxial load and pressure-less sintered under argon atmosphere. Finally, the sintered product was hot extruded. Carbon coated silver nanoparticles were well distributed in the matrix of the extruded material. Tensile tests were carried out to corroborate the hypothesis that second phase particles, well dispersed in the matrix, improve the strength of the material. High resolution transmission electron microscopy was employed to locate and make sure that the silver nanoparticles were homogeneously and finely dispersed. Highlights: Black-Right-Pointing-Pointer 7075 Al nanostructured composites can be produced by mechanical milling. Black-Right-Pointing-Pointer Carbon coated silver nanoparticles are well dispersed into aluminum matrix. Black-Right-Pointing-Pointer Ductile Ag-C NP's improve the mechanical properties of the 7075 Al-alloy. Black-Right-Pointing-Pointer Ag-C NP's content has an important effect in the particle and crystallite size. Black-Right-Pointing-Pointer Ag-C NP's keep their morphology after milling and conformation processes.},
doi = {10.1016/J.MATCHAR.2011.10.014},
url = {https://www.osti.gov/biblio/22066405}, journal = {Materials Characterization},
issn = {1044-5803},
number = Complete,
volume = 63,
place = {United States},
year = {2012},
month = {1}
}