Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 755-760 |
| Seitenumfang | 6 |
| Fachzeitschrift | Advanced engineering materials |
| Jahrgang | 17 |
| Ausgabenummer | 6 |
| Publikationsstatus | Veröffentlicht - 10 Juni 2015 |
Abstract
An experimental Co-base superalloy was designed from the Ni-base system by exchange of Ni and Co concentrations. The alloy consist of a Co-matrix (γ phase) strengthened by cuboidal precipitates Co3(Al,X) (γ′ phase). The γ′-solvus temperature is 1005°C. [001] single crystals of this alloy were solidified and tested for tension at different temperatures up to 1000°C. It was found that the Co-base alloy has a much lower yield stress than a corresponding Ni-base alloy, but a much higher ductility. The partitioning behaviour of the alloying elements in the Co-base alloy and the deformation mechanisms were investigated by scanning and transmission electron microscopy. An experimental Co-base superalloy with γ/γ′ microstructure was designed and tested for tension at different temperatures up to 1000°C. It was found that this alloy has a much lower yield stress than a similar Ni-base alloy. The supposed reason is less solid solution strengthening due to weaker segregation of refractory elements in the γ matrix.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
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in: Advanced engineering materials, Jahrgang 17, Nr. 6, 10.06.2015, S. 755-760.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - A Single‐Crystal Co‐Base Superalloy Strengthened by γ′ Precipitates
T2 - Structure and Mechanical Properties
AU - Petrushin, Nikolay
AU - Hvatzkiy, Konstantin
AU - Gerasimov, Victor
AU - Link, Thomas
AU - Epishin, Alexander
AU - Nolze, Gert
AU - Gerstein, Gregory
N1 - Publisher Copyright: © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Copyright: Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/6/10
Y1 - 2015/6/10
N2 - An experimental Co-base superalloy was designed from the Ni-base system by exchange of Ni and Co concentrations. The alloy consist of a Co-matrix (γ phase) strengthened by cuboidal precipitates Co3(Al,X) (γ′ phase). The γ′-solvus temperature is 1005°C. [001] single crystals of this alloy were solidified and tested for tension at different temperatures up to 1000°C. It was found that the Co-base alloy has a much lower yield stress than a corresponding Ni-base alloy, but a much higher ductility. The partitioning behaviour of the alloying elements in the Co-base alloy and the deformation mechanisms were investigated by scanning and transmission electron microscopy. An experimental Co-base superalloy with γ/γ′ microstructure was designed and tested for tension at different temperatures up to 1000°C. It was found that this alloy has a much lower yield stress than a similar Ni-base alloy. The supposed reason is less solid solution strengthening due to weaker segregation of refractory elements in the γ matrix.
AB - An experimental Co-base superalloy was designed from the Ni-base system by exchange of Ni and Co concentrations. The alloy consist of a Co-matrix (γ phase) strengthened by cuboidal precipitates Co3(Al,X) (γ′ phase). The γ′-solvus temperature is 1005°C. [001] single crystals of this alloy were solidified and tested for tension at different temperatures up to 1000°C. It was found that the Co-base alloy has a much lower yield stress than a corresponding Ni-base alloy, but a much higher ductility. The partitioning behaviour of the alloying elements in the Co-base alloy and the deformation mechanisms were investigated by scanning and transmission electron microscopy. An experimental Co-base superalloy with γ/γ′ microstructure was designed and tested for tension at different temperatures up to 1000°C. It was found that this alloy has a much lower yield stress than a similar Ni-base alloy. The supposed reason is less solid solution strengthening due to weaker segregation of refractory elements in the γ matrix.
UR - http://www.scopus.com/inward/record.url?scp=84930868642&partnerID=8YFLogxK
U2 - 10.1002/adem.201500088
DO - 10.1002/adem.201500088
M3 - Article
AN - SCOPUS:84930868642
VL - 17
SP - 755
EP - 760
JO - Advanced engineering materials
JF - Advanced engineering materials
SN - 1438-1656
IS - 6
ER -