Dissemination of IT for the Promotion of Materials Science (DoITPoMS)

DoITPoMS Micrograph Library Full Record for Micrograph 327
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Full Record for Micrograph 327

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Micrograph no
327
Brief description
Low alloy medium carbon steel, isothermally transformed
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, tempered
Categories
Metal or alloy
System
Fe-C-X   Link to phase diagram
Composition
Fe, C 0.4, Ni 1.3, Cr 0.65, Mo 0.65 (wt%)
Standard codes
BS 640M40, formerly En 111
Reaction
Processing
isothermal trans. 350ºC, 40wt
Applications
Sample preparation
Nital
Technique
Reflected light microscopy
Length bar
100 μm
Further information
A low alloy medium carbon steel that has been quenched producing martensite laths in the microstructure. A subsequent isothermal transformation serves to temper the steel and hence reduce the hardness of the metal.
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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