| Autor: |
Kriška, M., Tacq, J., Van Acker, K., Seefeldt, M. |
| Zdroj: |
Journal of Heat Treatment and Materials: HTM; April 2014, Vol. 69 Issue: 2 p97-105, 9p |
| Abstrakt: |
The residual stress evolutionduring cold drawing of pearlitic steel wire was followed over a broad strain range by diffraction techniques. The present work discusses possible links between microstructural changes induced by severe deformation and their “footprints” left in the residual stresses on different – macro, micro and nano – scale levels. Energy dispersive synchrotron diffraction revealed a significant divergence in the grain microstress evolution among differently oriented ferrite grains in the high deformation regime beyond an accumulated true strain of about ?t= 2.3. A possible physical reason for the observed divergence is discussed in terms of a distinct microstructure development in this stage of the cold wire drawing. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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