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Micrograph 278 and full record

Link to image file for micrograph 278
Micrograph no
278
Brief description
Fe, C 2, Mn 0.7 (wt%) steel, quenched, producing martensite
Keywords
alloy Link to MATTER Glossary entry for alloy, carbon, iron, martensite Link to MATTER Glossary entry for martensite, metal, quenching Link to MATTER Glossary entry for quenching, steel Link to MATTER Glossary entry for steel
Categories
Metal or alloy
System
Fe-C-X   Link to phase diagram
Composition
Fe, C 0.55, Mn 0.65 (wt%)
Standard codes
BS 070M55, formerly En 9
Reaction
Processing
Quenched
Applications
Sample preparation
Nital
Technique
Reflected light microscopy
Length bar
200 μm
Further information
This steel was quenched from the austenite phase field too rapidly for carbon to diffuse out and form cementite. This resulted in the formation of the brittle martensite phase.
Contributor
Dr R F Cochrane
Organisation
Department of Materials, University of Leeds
Date
04/09/02
Licence for re-use
Attribution-NonCommercial-ShareAlike 4.0 International
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