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Modelling the influence of plasticity induced softening on the low cycle fatigue and crack propagation behaviour of a nickel-based superalloy (2023)
Journal Article
Engel, B., Lavie, W., Rouse, J., Whittaker, M., Jones, J., Lancaster, R., …Hyde, C. (2024). Modelling the influence of plasticity induced softening on the low cycle fatigue and crack propagation behaviour of a nickel-based superalloy. Computational Materials Science, 231, Article 112604. https://doi.org/10.1016/j.commatsci.2023.112604

Cyclic hysteresis loops generated during high-temperature, isothermal, low-cycle fatigue testing of the nickel-based superalloy RR1000 revealed a gradual decrease in elastic modulus of up to 25 % compared to the initial value in dependence of the acc... Read More about Modelling the influence of plasticity induced softening on the low cycle fatigue and crack propagation behaviour of a nickel-based superalloy.

Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC (2022)
Journal Article
Engel, B., Huth, M., & Hyde, C. (2022). Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC. Crystals, 12(1), Article 100. https://doi.org/10.3390/cryst12010100

Polycrystalline nickel-based superalloys tend to have large grains within component areas where high loads are dominant during operation. Due to these large grains, caused by the manufacturing and cooling process, the orientation of each grain become... Read More about Numerical Investigation into the Influence of Grain Orientation Distribution on the Local and Global Elastic-Plastic Behaviour of Polycrystalline Nickel-Based Superalloy INC-738 LC.

Thermomechanical fatigue life due to scatter in constitutive parameters (2021)
Journal Article
Leidermark, D., Rouse, J., Engel, B., Hyde, C., Pattison, S., & Stekovic, S. (2021). Thermomechanical fatigue life due to scatter in constitutive parameters. Computational Materials Science, 198, Article 110690. https://doi.org/10.1016/j.commatsci.2021.110690

For critical component application, such as aerospace turbine rotors, it is imperative to be able to make accurate in-service material behaviour and component life predictions for both design and monitoring of component life. The development of such... Read More about Thermomechanical fatigue life due to scatter in constitutive parameters.

Influence of Grain Orientation Distribution on the High Temperature Fatigue Behaviour of Notched Specimen Made of Polycrystalline Nickel-Base Superalloy (2021)
Journal Article
Engel, B., Ohneseit, S., Mäde, L., & Beck, T. (2021). Influence of Grain Orientation Distribution on the High Temperature Fatigue Behaviour of Notched Specimen Made of Polycrystalline Nickel-Base Superalloy. Metals, 11(5), Article 731. https://doi.org/10.3390/met11050731

Two different material batches made of random and textured orientated polycrystalline nickel-base superalloy René80 were investigated under isothermal low cycle fatigue tests at 850 °C for a notched specimen geometry. In contrast to a smooth specimen... Read More about Influence of Grain Orientation Distribution on the High Temperature Fatigue Behaviour of Notched Specimen Made of Polycrystalline Nickel-Base Superalloy.

DevTMF – Towards code of practice for thermo-mechanical fatigue crack growth (2020)
Journal Article
Stekovic, S., Jones, J. P., Engel, B., Whittaker, M. T., Norman, V., Rouse, J. P., …Moverare, J. (2020). DevTMF – Towards code of practice for thermo-mechanical fatigue crack growth. International Journal of Fatigue, 138, Article 105675. https://doi.org/10.1016/j.ijfatigue.2020.105675

© 2020 Elsevier Ltd The current paper presents work on identification and evaluation of a range of factors influencing accuracy and comparability of data generated by three laboratories carrying out stress-controlled thermo-mechanical fatigue crack g... Read More about DevTMF – Towards code of practice for thermo-mechanical fatigue crack growth.

The effect of phase angle on crack growth mechanisms under thermo-mechanical fatigue loading (2020)
Journal Article
Jones, J., Whittaker, M., Lancaster, R., Hyde, C., Rouse, J., Engel, B., …Li, H. Y. (2020). The effect of phase angle on crack growth mechanisms under thermo-mechanical fatigue loading. International Journal of Fatigue, 135, Article 105539. https://doi.org/10.1016/j.ijfatigue.2020.105539

© 2020 Elsevier Ltd The current paper describes TMF crack growth behaviour in an advanced nickel-based superalloy. Changes in behaviour are examined which occur as a function of the phase angle between applied stress and temperature. The fractography... Read More about The effect of phase angle on crack growth mechanisms under thermo-mechanical fatigue loading.

Probabilistic Modeling of Slip System-Based Shear Stresses and Fatigue Behavior of Coarse-Grained Ni-Base Superalloy Considering Local Grain Anisotropy and Grain Orientation (2019)
Journal Article
Engel, B., Mäde, L., Lion, P., Moch, N., Gottschalk, H., & Beck, T. (2019). Probabilistic Modeling of Slip System-Based Shear Stresses and Fatigue Behavior of Coarse-Grained Ni-Base Superalloy Considering Local Grain Anisotropy and Grain Orientation. Metals, 9(8), 1-27. https://doi.org/10.3390/met9080813

New probabilistic lifetime approaches for coarse grained Ni-base superalloys supplement current deterministic gas turbine component design philosophies; in order to reduce safety factors and push design limits. The models are based on statistical dis... Read More about Probabilistic Modeling of Slip System-Based Shear Stresses and Fatigue Behavior of Coarse-Grained Ni-Base Superalloy Considering Local Grain Anisotropy and Grain Orientation.