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Metals 2015, 5(2), 669-685; doi:10.3390/met5020669

Effect of Milling Time and the Consolidation Process on the Properties of Al Matrix Composites Reinforced with Fe-Based Glassy Particles

1
Particulate Materials Laboratories (PML), Department of Metallurgical and Materials Engineering, İstanbul Technical University, 34469 İstanbul, Turkey
2
Institute for Complex Materials, IFW Dresden, 270116 Dresden, Germany
3
Institut für Werkstofftechnik, Universität Bremen, D-28359 Bremen, Germany
4
TU Dresden, Institut für Werkstoffwissenschaft, D-01062 Dresden, Germany
Present Address: R&D Engineer, Additive manufacturing Center, Sandvik AB, 81181 Sandviken, Sweden; E-Mail: prashanth.konda_gokuldoss@sandvik.com.
*
Author to whom correspondence should be addressed.
Academic Editors: K. C. Chan and Jordi Sort Viñas
Received: 27 March 2015 / Revised: 19 April 2015 / Accepted: 22 April 2015 / Published: 27 April 2015
(This article belongs to the Special Issue Metallic Glasses)
View Full-Text   |   Download PDF [1909 KB, uploaded 27 April 2015]   |  

Abstract

Al matrix composites reinforced with 40 vol% Fe50.1Co35.1Nb7.7B4.3Si2.8 glassy particles have been produced by powder metallurgy, and their microstructure and mechanical properties have been investigated in detail. Different processing routes (hot pressing and hot extrusion) are used in order to consolidate the composite powders. The homogeneous distribution of the glassy reinforcement in the Al matrix and the decrease of the particle size are obtained through ball milling. This has a positive effect on the hardness and strength of the composites. Mechanical tests show that the hardness of the hot pressed samples increases from 51–155 HV, and the strength rises from 220–630 MPa by extending the milling time from 1–50 h. The use of hot extrusion after hot pressing reduces both the strength and hardness of the composites: however, it enhances the plastic deformation significantly. View Full-Text
Keywords: metallic glasses; composites; powder metallurgy; mechanical characterization metallic glasses; composites; powder metallurgy; mechanical characterization
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Balcı, Ö.; Prashanth, K.G.; Scudino, S.; Ağaoğulları, D.; Duman, İ.; Öveçoğlu, M.L.; Uhlenwinkel, V.; Eckert, J. Effect of Milling Time and the Consolidation Process on the Properties of Al Matrix Composites Reinforced with Fe-Based Glassy Particles. Metals 2015, 5, 669-685.

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