Characterization of the metastable austenite in low-alloy FeCMnSi TRIP-aided steel by neutron diffraction
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L. Barbé
Abstract
The detailed analysis of X-ray diffraction data obtained from intercritically annealed and isothermally transformed low-alloy FeCMnSi TRIP-aided steels reveals that the microstructure contains athermal plate martensite and Fe2C η carbide in addition to ferrite, bainite and residual austenite. Neutron diffraction shows that athermal plate martensite can be formed at room temperature in the isolated austenite phase. Whereas the formation of athermal martensite leads to compressive strains in the austenite, the formation of strain-induced martensite results in tensile straining of the austenite. The strain-induced transformation leads to the formation of a martensite of low tetragonality. Low-temperature annealing leads to the formation of η carbide in both the athermal and strain-induced martensite.
The authors would like to thank dr. ir. M. De Meyer for the materials preparation.
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© 2002 Carl Hanser Verlag, München
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Articles in the same Issue
- Frontmatter
- Articles/Aufsätze
- Niobium bulk and grain boundary diffusion in alpha-iron
- Comparison of fatigue lives between grain boundaries and component single crystals of copper bicrystals
- Interfacial reaction between liquid Sn-20In-2.8Ag solder and Ag substrate
- Modelling the continuous cooling transformation diagram of engineering steels using neural networks
- Modelling the continuous cooling transformation diagram of engineering steels using neural networks
- Characterization of the metastable austenite in low-alloy FeCMnSi TRIP-aided steel by neutron diffraction
- Self-organized criticality – a model for recrystallization?
- Strain softening effects in texture and microstructure of torsioned pre-deformed Al rods
- Microstructural evolution in as-cast hypereutectic Al-Si alloys with different La additions
- Wear behaviour of graphitic aluminium composite sliding under dry conditions
- Temperature dependence of Young’s Modulus of alumina short fiber reinforced Zn–Al MMCs produced by pressure die-casting
- Notifications/Mitteilungen
- Personal/Personelles
- Information
- Conferences/Konferenzen
