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Assessment of potential service-life performance for MarBN steel power plant header under flexible thermomechanical operations (2020)
Journal Article
Benaarbia, A., Morris, A., Li, M., & Sun, W. (2020). Assessment of potential service-life performance for MarBN steel power plant header under flexible thermomechanical operations. International Journal of Fatigue, 135, https://doi.org/10.1016/j.ijfatigue.2020.105565

This paper is concerned with the service-life assessment of 9Cr steels superheater outlet steam header subjected to realistic subcritical and future ultra-super critical flexible operating conditions. The proposed methodology is achieved via a combin... Read More about Assessment of potential service-life performance for MarBN steel power plant header under flexible thermomechanical operations.

Characterization of cyclic behavior, deformation mechanisms, and microstructural evolution of MarBN steels under high temperature conditions (2019)
Journal Article
Benaarbia, A., Xu, X., Sun, W., Becker, A., & Osgerby, S. (2020). Characterization of cyclic behavior, deformation mechanisms, and microstructural evolution of MarBN steels under high temperature conditions. International Journal of Fatigue, 131, 105270. https://doi.org/10.1016/j.ijfatigue.2019.105270

In this paper, the low cycle fatigue behaviour of MarBN steels at elevated temperatures is discussed. Four cyclic loading waveforms were applied to investigate both the mechanical and microstructural features. The mechanical results exhibit continuou... Read More about Characterization of cyclic behavior, deformation mechanisms, and microstructural evolution of MarBN steels under high temperature conditions.

Experimental characterisation and computational modelling of cyclic viscoplastic behaviour of turbine steel (2019)
Journal Article
Hughes, J., Rae, Y., Benaarbia, A., Hughes, J., & Sun, W. (2019). Experimental characterisation and computational modelling of cyclic viscoplastic behaviour of turbine steel. International Journal of Fatigue, 124, 581-594. https://doi.org/10.1016/j.ijfatigue.2019.01.022

Fully reversed strain controlled low cycle fatigue and creep-fatigue interaction tests have been performed at ±0.7% strain amplitude and at three different temperatures (400 °C, 500 °C and 600 °C) to investigate the cyclic behaviour of a FV566 marten... Read More about Experimental characterisation and computational modelling of cyclic viscoplastic behaviour of turbine steel.

Experimental characterisation and computational modelling of cyclic viscoplastic behaviour of turbine steel (2019)
Journal Article
Rae, Y., Benaarbia, A., Hughes, J., & Sun, W. (2019). Experimental characterisation and computational modelling of cyclic viscoplastic behaviour of turbine steel. International Journal of Fatigue, 124, 581-594. https://doi.org/10.1016/j.ijfatigue.2019.01.022

Fully reversed strain controlled low cycle fatigue and creep-fatigue interaction tests have been performed at ±0.7% strain amplitude and at three different temperatures (400°C, 500°C and 600°C) to investigate the cyclic behaviour of a FV566 martensit... Read More about Experimental characterisation and computational modelling of cyclic viscoplastic behaviour of turbine steel.

Investigation of short-term creep deformation mechanisms in MarBN steel at elevated temperatures (2018)
Journal Article
Benaarbia, A., Xu, X., Sun, W., Becker, A., & Jepson, M. (2018). Investigation of short-term creep deformation mechanisms in MarBN steel at elevated temperatures. Materials Science and Engineering: A, 734, 491-505. https://doi.org/10.1016/j.msea.2018.06.063

This paper reports the short-term creep behavior at elevated temperatures of a MarBN steel variant. Creep tests were performed at 3 different temperatures (625oC, 650oC and 675oC) with applied stresses ranging from 160 MPa to 300 MPa, and failure tim... Read More about Investigation of short-term creep deformation mechanisms in MarBN steel at elevated temperatures.

A thermodynamically-based viscoelastic-viscoplastic model for the high temperature cyclic behaviour of 9-12% Cr steels (2018)
Journal Article
Benaarbia, A., Rouse, J. P., & Sun, W. (2018). A thermodynamically-based viscoelastic-viscoplastic model for the high temperature cyclic behaviour of 9-12% Cr steels. International Journal of Plasticity, 107, https://doi.org/10.1016/j.ijplas.2018.03.015

Improving the understanding of the long term rate dependent behaviour of materials is of critical importance in many engineering applications. Without this understanding, it is potentially difficult to ensure safe and effective plant operation while... Read More about A thermodynamically-based viscoelastic-viscoplastic model for the high temperature cyclic behaviour of 9-12% Cr steels.

Unified viscoplasticity modelling and its application to fatigue-creep behaviour of gas turbine rotor (2017)
Journal Article
Benaarbia, A., Rae, Y., & Sun, W. (2018). Unified viscoplasticity modelling and its application to fatigue-creep behaviour of gas turbine rotor. International Journal of Mechanical Sciences, 136, https://doi.org/10.1016/j.ijmecsci.2017.12.008

This paper presents an elasto-visco-plastic finite element modelling framework including the associated UMAT codes to investigate the high temperature behaviour of gas turbine rotor steels. The model used in the FE study is an improved and unified mu... Read More about Unified viscoplasticity modelling and its application to fatigue-creep behaviour of gas turbine rotor.