Use of duplex microstructures in steel for estimation of plastic deformation in high-speed machining chips
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R. Blümke
Abstract
It is shown that chip formation in high-speed milling of a steel remains unaffected by the presence of a volume fraction of about 10 % ferrite to either martensitic or pearlitic microstructures. Ferrite grains remain visible within the chips and can, therefore, be used for an estimation of the local plastic deformation. In case of the martensite structure, a deformation of 3000 % was measured in the white etching secondary shear zone, while a considerable amount of deformation even takes place within chip segments. The presence of ferrite grains within the white layer is an indication of a thermally-induced phase transformation occurring within the secondary shear zone of the chips.
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This work was financially supported by Deutsche Forschungsgemeinschaft within the Schwerpunktprogramm “Spanen metallischer Werkstoffe mit hohen Geschwindigkeiten”. It was performed in collaboration with the Institute of Production Engineering and Machine Tools (Darmstadt University of Technology). The authors thank Prof. H. Schulz for providing the high-speed machining facilities and for valuable discussions. The assistance of A. Sahm with the machining experiments is gratefully acknowledged.
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© 2002 Carl Hanser Verlag, München
Articles in the same Issue
- Frontmatter
- Aufsätze/Articles
- Dilatometric study of the effect of soluble boron on the continuous and isothermal austenite decomposition in 0.15C–1.6Mn steel
- Use of duplex microstructures in steel for estimation of plastic deformation in high-speed machining chips
- Stability of strengthened niobium alloys in long-term high-temperature loading conditions
- Effect of rare-earth metals on the hot strength of HSLA steels
- Wear behaviour of Ni–Cr–Mo–V steel under dry sliding
- Thermodynamic calculation of the phase diagram of the Co–Nb–Ta system
- Peritectic equilibrium in Fe-Co alloys
- A thermodynamic description of the B–Co system: modeling and experiment
- Thermodynamic interpretation of thermoelectric phenomena
- Unit cell volumes of the silicon- and germanium-containing solid solutions based on the 3d bcc transition metals
- Artificial silicide barrier coatings in titanium matrix composites
- Notifications/Mitteilungen
- Personal/Personelles
- DGM Training/DGM Fortbildung
- Conferences/Konferenzen
Articles in the same Issue
- Frontmatter
- Aufsätze/Articles
- Dilatometric study of the effect of soluble boron on the continuous and isothermal austenite decomposition in 0.15C–1.6Mn steel
- Use of duplex microstructures in steel for estimation of plastic deformation in high-speed machining chips
- Stability of strengthened niobium alloys in long-term high-temperature loading conditions
- Effect of rare-earth metals on the hot strength of HSLA steels
- Wear behaviour of Ni–Cr–Mo–V steel under dry sliding
- Thermodynamic calculation of the phase diagram of the Co–Nb–Ta system
- Peritectic equilibrium in Fe-Co alloys
- A thermodynamic description of the B–Co system: modeling and experiment
- Thermodynamic interpretation of thermoelectric phenomena
- Unit cell volumes of the silicon- and germanium-containing solid solutions based on the 3d bcc transition metals
- Artificial silicide barrier coatings in titanium matrix composites
- Notifications/Mitteilungen
- Personal/Personelles
- DGM Training/DGM Fortbildung
- Conferences/Konferenzen
