Hot Consolidation of Aluminium and Aluminium nano-MMC Powders by Equal Channel Angular Pressing

Authors

  • Lauri KOLLO Tallinn University of Technology
  • Kaspar KALLIP Tallinn University of Technology
  • Jaana-Kateriina GOMON Tallinn University of Technology
  • Lembit KOMMEL Tallinn University of Technology

DOI:

https://doi.org/10.5755/j01.ms.18.3.2431

Keywords:

aluminium, powder metallurgy, metal matrix composites, Equal Channel Angular Pressing

Abstract

In this work novel routes for consolidating aluminum powders via Equal Channel Angular Pressing (ECAP) are investigated. Furthermore, parameters were optimized for consolidating aluminium reinforced with nanoparticles
(n-SiC) and nanofibers (Carbon nanotubes). Consolidating commercial purity aluminum powder with ECAP, approximately 60 % rise in hardness and strength were achieved compared to materials compacted by well established direct extrusion, at the same time losing about 2 times in ductility. Al-1 vol. % nano-SiC composites showed increase in hardness compared to composites consolidated by conventional methods.

DOI: http://dx.doi.org/10.5755/j01.ms.18.3.2431

Downloads

Published

2012-09-11

Issue

Vol. 18 No. 3 (2012)

Section

METALS, ALLOYS, COATINGS

License

 

The copyrights for articles in this journal are retained by the author(s), with first publication rights granted to the journal. By virtue of their appearance in this open-access journal, articles are free to use with proper attribution in educational and other non-commercial settings.