Image icon  Normalised low carbon manganese steel, showing directionality

 
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Description: Low carbon steel with a microstructure consisting mostly of ferrite. Manganese is added to steel to remove oxygen and sulphur. It causes a reduction in the resulting grain size and hence the steel is tougher and stronger. This sample has been normalised, recrystallising the ferrite. The pearlite is unable to do this and consequently retains its directionality.
Keywords: alloy • carbon • directionality • iron • metal • normalising • steel
Categories: Science approaches > Microstructure
Science approaches > Strengthening mechanisms > Recovery, recrystallisation & grain growth
Materials > Metals & alloys > Carbon steels
Testing, analysis & experimentation > Metallography
Scale > Micro
Created by: Dr R F Cochrane, Department of Materials, University of Leeds
DoITPoMS, 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: 04 September 2002
Date added: 21 August 2009
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Resource ID: 1241