Details
| Original language | English |
|---|---|
| Pages (from-to) | 1099-1108 |
| Number of pages | 10 |
| Journal | Inorganic Materials: Applied Research |
| Volume | 13 |
| Issue number | 4 |
| Early online date | 19 Jul 2022 |
| Publication status | Published - Aug 2022 |
Abstract
Abstract: A nickel-based eutectic alloy with a γ/γ '-NbC structure was directionally solidified with a planar front. The specimens were tested for creep under sawtooth thermal cycling in the temperature range from 600 to 1100°C. It has been established that the lifetime under the conditions of thermal cycling is about five times shorter than it is predicted by the linear damage accumulation rule on the basis of results of isothermal creep tests. Faster creep under thermal cycling is caused by the rapid coarsening of the γ/γ ' microstructure due to the periodic partial dissolution and reprecipitation of the γ ' phase in heating and cooling half-cycles.
Keywords
- carbide phase NbC, creep under thermal cycling, high temperature nickel-based eutectic alloys, in-situ composites, γ/γ ' matrix
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- General Engineering
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In: Inorganic Materials: Applied Research, Vol. 13, No. 4, 08.2022, p. 1099-1108.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Creep of Directionally Solidified Eutectics Ni/Ni3 Al–NbC under Thermal Cycling
AU - Svetlov, I. L.
AU - Epishin, A. I.
AU - Petrushin, N. V.
AU - Gerstein, G.
AU - Nolze, G.
AU - Maier, H. J.
N1 - Funding Information: Authors thank the Russian Foundation for Basic Research, project 18-508-12010, and the Germany Research Foundation DFG, project 449967666, for supporting this work.
PY - 2022/8
Y1 - 2022/8
N2 - Abstract: A nickel-based eutectic alloy with a γ/γ '-NbC structure was directionally solidified with a planar front. The specimens were tested for creep under sawtooth thermal cycling in the temperature range from 600 to 1100°C. It has been established that the lifetime under the conditions of thermal cycling is about five times shorter than it is predicted by the linear damage accumulation rule on the basis of results of isothermal creep tests. Faster creep under thermal cycling is caused by the rapid coarsening of the γ/γ ' microstructure due to the periodic partial dissolution and reprecipitation of the γ ' phase in heating and cooling half-cycles.
AB - Abstract: A nickel-based eutectic alloy with a γ/γ '-NbC structure was directionally solidified with a planar front. The specimens were tested for creep under sawtooth thermal cycling in the temperature range from 600 to 1100°C. It has been established that the lifetime under the conditions of thermal cycling is about five times shorter than it is predicted by the linear damage accumulation rule on the basis of results of isothermal creep tests. Faster creep under thermal cycling is caused by the rapid coarsening of the γ/γ ' microstructure due to the periodic partial dissolution and reprecipitation of the γ ' phase in heating and cooling half-cycles.
KW - carbide phase NbC
KW - creep under thermal cycling
KW - high temperature nickel-based eutectic alloys
KW - in-situ composites
KW - γ/γ ' matrix
UR - http://www.scopus.com/inward/record.url?scp=85134366805&partnerID=8YFLogxK
U2 - 10.1134/S2075113322040347
DO - 10.1134/S2075113322040347
M3 - Article
AN - SCOPUS:85134366805
VL - 13
SP - 1099
EP - 1108
JO - Inorganic Materials: Applied Research
JF - Inorganic Materials: Applied Research
SN - 2075-1133
IS - 4
ER -