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DoITPoMS Micrograph Library Full Record for Micrograph 771
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Full Record for Micrograph 771

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Micrograph no
771
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, grain Link to MATTER Glossary entry for grain, metal, 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
Applications
Construction of highly sophisticated power generation units.
Sample preparation
Specimen polished and etched electrolytically using 10% oxalic acid solution in water.
Technique
Reflected light microscopy
Length bar
100 μm
Further information
Shows the grain structure of an austenitic stainless steel NF709, observed using light microscopy on a specimen polished and etched electrolytically using 10% oxalic acid solution in water. Many of the grains contain annealing twins. NF709 is a creep-resistant austenitic stainless steel used in the construction of highly sophisticated power generation units.

Source: http://www.msm.cam.ac.uk/phase-trans/abstracts/annealing.twin.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-Non-Commercial-Share Alike 2.0 UK: England & Wales
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