Szczegóły publikacji
Opis bibliograficzny
Influence of high-temperature exposure on the microstructure of ATI 718Plus superalloy studied by electron microscopy and tomography techniques / Sebastian LECH, Adam KRUK, Grzegorz CEMPURA, Adam GRUSZCZYŃSKI, Aleksander GIL, Alina Agüero, Agnieszka M. Wusatowska-Sarnek, Aleksandra CZYRSKA-FILEMONOWICZ // Journal of Materials Engineering and Performance ; ISSN 1059-9495. — 2020 — vol. 29 iss. 3, s. 1453–1459. — Bibliogr. s. 1459. — Publikacja dostępna online od: 2019-11-20. — AMT 2019 : The XXII Physical Metallurgy and Materials Science Conference: Advanced Materials and Technologies : Bukowina Tatrzańska, June 9–12, 2019
Autorzy (8)
- AGHLech Sebastian
- AGHKruk Adam
- AGHCempura Grzegorz
- AGHGruszczyński Adam
- AGHGil Aleksander
- Agüero Alina
- Wusatowska-Sarnek Agnieszka M.
- AGHCzyrska-Filemonowicz Aleksandra
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 128328 |
|---|---|
| Data dodania do BaDAP | 2020-04-16 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s11665-019-04474-5 |
| Rok publikacji | 2020 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Materials Engineering and Performance |
Abstract
The changes in ATI(R) 718Plus (TM) (718Plus) superalloy microstructure after high-temperature long-term exposure (850 degrees C/4000 h/air) were characterized by two- and three-dimensional imaging techniques. The 718Plus microstructure consists of a gamma-matrix strengthened by coherent gamma '-phase and plate-like eta-phase at grain boundaries. The eta-phase analysis showed the presence of delta-phase stacking faults within it, along with fluctuations of chemical composition within these defects. Applied thermal exposure resulted in an increased amount of delta-, eta-phases and formation of topologically close-packed phases. One of them was identified by electron diffraction as trigonal mu-phase. However, the difference in size and morphology revealed via tomographic reconstruction indicates that the formation of other topologically close-packed phases is possible. The mu-phase was enriched in Mo, Co, Fe and Cr, which causes their depletion in the gamma-matrix and may detrimentally affect the superalloy mechanical properties.