| Autor: |
Mughrabi, H., Höppel, H. W., Kautz, M., Valiev, R. Z. |
| Zdroj: |
International Journal of Materials Research: Zeitschrift fuer Metallkunde; February 2022, Vol. 94 Issue: 10 p1079-1083, 5p |
| Abstrakt: |
Ultrafine-grained (UFG) metals produced by techniques of severe plastic deformation, such as equal channel angular pressing (ECAP), exhibit extraordinary strength properties. However, in the as-ECAP-processed state, the heavily deformed microstructure of such UFG metals is rather unstable and is prone to undergo grain coarsening (recrystallization) at moderate temperatures. This microstructural instability is enhanced in the presence of modest mechanical stressing as, for example, in cyclic deformation. Thus, all measures to enhance the thermal stability are also considered as beneficial for the improvement of the mechanical stability. |
| Databáze: |
Supplemental Index |
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