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

DoITPoMS Micrograph Library Micrograph 776 and full record

Micrograph 776 and full record

Link to image file for micrograph 776
Micrograph no
776
Brief description
Austenitic stainless steel
Keywords
alloy Link to MATTER Glossary entry for alloy, annealing twins Link to MATTER Glossary entry for annealing twins, austenite Link to MATTER Glossary entry for austenite, carbon, dislocation Link to MATTER Glossary entry for dislocation, grain Link to MATTER Glossary entry for grain, iron, metal, recrystallisation Link to MATTER Glossary entry for recrystallisation, stainless steel, steel Link to MATTER Glossary entry for steel
Categories
Metal or alloy
System
Fe-C-X   Link to phase diagram
Composition
Stainless steel
Standard codes
Reaction
Processing
The sample was cold-deformed by rolling and then annealed at 704°C for one hour.
Applications
Sample preparation
Technique
Transmission electron microscopy (TEM)
Length bar
2 μm
Further information
This is a transmission electron micrograph taken at 200 kV, from a thin foil sample of "302AA" austenitic stainless steel. The sample was cold-deformed by rolling and then annealed at 704°C for one hour. The image shows a mixture of recrystallised and deformed grains. There are some stacking faults (ribbon like contrast) in the recrystallised grains; austenitic stainless steels have a relatively low stacking fault energy.

Source: http://www.msm.cam.ac.uk/phase-trans/abstracts/recryst.html.
Contributor
Prof H K D H Bhadeshia
Organisation
Department of Materials Science and Metallurgy, University of Cambridge
Date
18/07/03
Licence for re-use
Attribution-NonCommercial-ShareAlike 4.0 International
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