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Full Record for Micrograph 46
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- Micrograph no
- 46
- Brief description
- Fe, Ni 30, C 0.3 (wt%), quenched - martensite plates
- Keywords
- alloy
, carbon, iron, martensite , metal, metastable , nickel, quenching - Categories
- Metal or alloy
- System
- Fe-C-X
- Composition
- Fe, C 0.3, Ni 30 (wt%)
- Standard codes
- Reaction
- Processing
- Quenched to -80 °C
- Applications
- Sample preparation
- Technique
- Reflected light microscopy
- Length bar
- 80 μm
- Further information
- This sample was quenched to -80 °C to give a metastable martensitic microstructure. The martensite plates show a lenticular morphology as the material attempts to shear as it transforms but is unable to open up voids at the grain boundaries. The plates form in a similar way to mechanical twins but the shear processes lead to changes in crystal structure as well as crystallographic orientation.
- Contributor
- Prof T W Clyne
- Organisation
- Department of Materials Science and Metallurgy, University of Cambridge
- Date
- 25/10/01
- Licence for re-use
Attribution-NonCommercial-ShareAlike 4.0 International- Related micrographs