On the Accurate Prediction of Residual Stress in a Three-Pass Slot Nickel-Base Repair Weld by Numerical Simulations

Autor: Vasileios Akrivos, Ondrej Muransky, Lionel Depradeux, Michael C. Smith, Anastasia Vasileiou, Viorel Deaconu, Priyesh Kapadia

Publikováno v: Journal of Manufacturing and Materials Processing, Vol 6, Iss 3, p 61 (2022)

The activities within a European network to develop accurate experimental and numerical methods to assess residual stresses in structural weldments are reported. The NeT Task Group 6 or NeT-TG6 project examined an Alloy 600 plate containing a three-p

Externí odkaz: https://doaj.org/article/cb93db8868bd493ca23ead07234cdbd4

Electron beam weld modelling of ferritic steel: effect of prior-austenite grain size on transformation kinetics

Autor: C.J. Hamelin, Thomas Flint, John Francis, Qingrong Xiong, Michael Smith, Anastasia Vasileiou, Vasileios Akrivos, Yongle Sun

Publikováno v: Vasileiou, A N, Hamelin, C J, Smith, M C, Francis, J A, Sun, Y L, Flint, T F, Xiong, Q & Akrivos, V 2020, ' Electron beam weld modelling of ferritic steel: effect of prior-austenite grain size on transformation kinetics ', Procedia Manufacturing, vol. 51, pp. 842-847 . https://doi.org/10.1016/j.promfg.2020.10.118

Ferritic steels experience solid-state phase transformation (SSPT), which causes volumetric changes due to differences in the atomic packing density of different phases in the steel. The importance of the prior austenite grain size (PAGS) as an input

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1661542e86c082377476e88a150e7c93
https://doi.org/10.1016/j.promfg.2020.10.118

Residual stresses in arc and electron-beam welds in 130 mm thick SA508 steel: Part 1 - Manufacture

Autor: Michael Smith, Dinesh W. Rathod, Anastasia Vasileiou, John Francis, Matthew Roy, Jeyaganesh Balakrishnan, Neil Irvine, Paul English

Publikováno v: Rathod, D, Francis, J, Vasileiou, A, Roy, M, English, P, Balakrishnan, J, Smith, M & Irvine, N 2019, ' Residual stresses in arc and electron-beam welds in 130 mm thick SA508 steel : Part 1-Manufacture ', International Journal of Pressure Vessels and Piping, vol. 172, pp. 313-328 . https://doi.org/10.1016/j.ijpvp.2019.03.034

In this study we aim to determine how the choice of welding process might impact on the through-life performance of critical nuclear components such as the reactor pressure vessel, steam generators and pressuriser in a pressurised water reactor. Atte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbadb13714ec009ddcafed1e71a37d0e
https://doi.org/10.1016/j.ijpvp.2019.03.034

Residual stress distributions in arc, laser and electron-beam welds in 30 mm thick SA508 steel: A cross-process comparison

Autor: Neil Irvine, J. Balakrishnan, John Francis, Matthew Roy, Mark D. Callaghan, Michael Smith, Anastasia Vasileiou

Publikováno v: Balakrishnan, J, Vasileiou, A, Francis, J, Smith, M, Roy, M, Callaghan, M D & Irvine, N 2018, ' Residual Stress Distributions in Arc, Laser and Electron-Beam Welds in 30 mm Thick SA508 Steel : A Cross-Process Comparison ', International Journal of Pressure Vessels and Piping, vol. 162, pp. 59-70 . https://doi.org/10.1016/j.ijpvp.2018.03.004

Safety-critical pressure vessels in pressurised water reactors (PWRs), such as the reactor pressure vessel and the steam generators, have been fabricated using arc welding processes for several decades. However, recent interest in nuclear new-build p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8a8e6c940124a34631588333a150be0
https://doi.org/10.1016/j.ijpvp.2018.03.004

Measurement and Prediction of Phase Transformation Kinetics in a Nuclear Steel During Rapid Thermal Cycles

Autor: Michael Preuss, Gideon Obasi, John Francis, Ed Pickering, Michael Smith, Yongle Sun, Dinesh W. Rathod, Anastasia Vasileiou

Publikováno v: Obasi, G, Pickering, E, Vasileiou, A, Sun, Y, Rathod, D, Preuss, M, Francis, J & Smith, M 2019, ' Measurement and Prediction of Phase Transformation Kinetics in a Nuclear Steel During Rapid Thermal Cycles ', Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, vol. 50, no. 4, pp. 1715-1731 . https://doi.org/10.1007/s11661-018-05102-y
Metallurgical and materials transactions / A Physical metallurgy and materials science 50(4), 1-17 (2019). doi:10.1007/s11661-018-05102-y

Metallurgical and materials transactions / A Physical metallurgy and materials science 50(4), 1-17 (2019). doi:10.1007/s11661-018-05102-y
Accurate prediction of the residual stress distributions in steel welds can only be achieved if considerati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc8540dc81fc58d01ac5e6ae0fc79726