Paper Title:
Direct Extrusion of Circular Profiles with Surface Composite Produced by Friction Stir Processing
  Abstract

In this research, a new application of friction stir processing (FSP) in producing surface composite on circular billets was introduced. Al/Cu composite was fabricated by FSP on the surface of a 1050 aluminium cylinder with the diameter of 60 mm. Then this cylinder with surface composite was extruded with the extrusion ratio of 1.7. Finally, microstructure and microhardness were investigated before and after the extrusion. H13 hot work steel was used as the material of the tool whose pin diameter and length were 6 mm and shoulder diameter was 18 mm. The rotation and traverse speed of the tool were 1000 rpm and 25 mm/min respectively. The microstructural investigations show that the thickness of the composite layer decreases and a uniform layer of the composite remains on the surface after the extrusion. Also the microhardness measurements demonstrated that the hardness of the composite layer was higher than the base metal and the microhardness of all zones increased after the extrusion.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 9: Composite Materials II
Edited by
Wu Fan
Pages
2747-2752
DOI
10.4028/www.scientific.net/AMR.383-390.2747
Citation
A. Aghagol, S. M. Darani, K. Abrinia, M. K. B. Givi, "Direct Extrusion of Circular Profiles with Surface Composite Produced by Friction Stir Processing", Advanced Materials Research, Vols. 383-390, pp. 2747-2752, 2012
Online since
November 2011
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Price
$32.00
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