Pore annihilation in a single-crystal nickel-base superalloy during hot isostatic pressing: Experiment and modelling
- Pore annihilation during hot isostatic pressing (HIP) was investigated in the single-crystal nickel-base superalloy CMSX-4 experimentally by interrupted HIP tests at 1288 °C/103 MPa. The kinetics of pore annihilation was determined by density measurement and quantitative metallography. Transmission electron microscopy of a HIPed specimen showed that the pores shrink via dislocation movement on octahedral glide planes. Theoretically pore closure under HIP condition was modelled by the finite element method using crystal plasticity and large strain theories. The modelling gives a similar kinetics of pore annihilation as observed experimentally, however somewhat higher annihilation rate.
Autor*innen: | A. Epishin, Bernard FedelichORCiD, T. Link, Titus Feldmann, I.L. Svetlov |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Materials science and engineering A |
Jahr der Erstveröffentlichung: | 2013 |
Verlag: | Elsevier |
Verlagsort: | Amsterdam |
Jahrgang/Band: | 586 |
Erste Seite: | 342 |
Letzte Seite: | 349 |
Freie Schlagwörter: | Bulk deformation; Crystal plasticity; Electron microscopy; Finite element method; Nickel based superalloys |
DOI: | 10.1016/j.msea.2013.08.034 |
ISSN: | 0921-5093 |
ISSN: | 1873-4936 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 20.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 01.11.2013 |