Image icon  The grain structure of extruded aluminium

 
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Description: The extrusion process leads to the elongation of grains. This micrograph shows a longitudinal section with the extrusion direction lying horizontal. Some large subgrains (or groups of subgrains) are apparent, and some high angle boundary migration has occurred normal to the extrusion direction. Grains near the extrudate centre have a lower aspect ratio.
Keywords: alloy • aluminium • elongation • extrusion • metal
Categories: Science approaches > Microstructure
Materials > Metals & alloys > Aluminium & alloys
Processes > Shaping > Deformation > Extrusion
Testing, analysis & experimentation > Metallography
Scale > Micro
Created by: DoITPoMS, University of Cambridge
Prof T W Clyne, Department of Materials Science and Metallurgy, University of Cambridge
Published by: DoITPoMS, University of Cambridge
License: This resource is released under the Creative Commons Attribution Non-Commercial Share Alike license (2.0 UK: England & Wales).
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Date created: 03 October 2002
Date added: 21 August 2009
Package:
Resource ID: 1642