Abstract
The polycrystalline nickel-base superalloy RR1000 is used as turbine rotor material in Rolls-Royce aero engines and has to withstand a wide variety of load and temperature changes during operation. In order to maximize the potential of the material and to improve component design, it is of great interest to understand, and subsequently be able to accurately model the crack propagation caused by thermo-mechanical fatigue conditions. In this work, experimental data is analysed and used to inform unified modelling approaches in order to predict the crack propagation behaviour of RR1000 under a variety of stress-controlled thermo-mechanical fatigue conditions.
Original language | English |
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Article number | 105652 |
Journal | International Journal of Fatigue |
Volume | 137 |
DOIs | |
Publication status | Published - Aug 2020 |
Bibliographical note
Funding Information:This project has received funding from the European Union's Horizon 2020 research and innovation programme and Joint Undertaking Clean Sky 2 under grant agreement No 686600. The authors are also grateful for the supply of material and input from Rolls-Royce plc.
Publisher Copyright:
© 2020 Elsevier Ltd
Keywords
- Crack growth
- High temperature materials
- Nickel-base superalloy
- Thermo-mechanical fatigue
- Unified model
ASJC Scopus subject areas
- Modelling and Simulation
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering