Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Matias Ahonen"'
Publikováno v:
Nuclear Materials and Energy, Vol 31, Iss , Pp 101202- (2022)
For reducing the radiological hazard, Co-free hardfacing alternatives have been used to replace the traditional Co-based hardfacing alloys in nuclear power plant applications. However, manufacturing a defect-free Co-free hardfacing is challenging. Re
Externí odkaz:
https://doaj.org/article/b56bcc7b3e9e4d3e8a0b1c4cc736611c
Autor:
Matias Ahonen, Roman Mouginot, Teemu Sarikka, Sebastian Lindqvist, Zaiqing Que, Ulla Ehrnstén, Iikka Virkkunen, Hannu Hänninen
Publikováno v:
Metals, Vol 10, Iss 3, p 421 (2020)
Dissimilar metal welds (DMWs) are a key design feature in nuclear power systems, typically involving ferritic low-alloy steels (LAS), stainless steels (SS), and nickel-base alloys. They are, however, a potential concern regarding the structural integ
Externí odkaz:
https://doaj.org/article/5056062ea5f1493482138014e4fe9544
Publikováno v:
Lindqvist, S, Ahonen, M, Lydman, J, Arffman, P & Hänninen, H 2019, ' A crack-location correction for T 0 analysis of an alloy 52 dissimilar metal weld ', Engineering Fracture Mechanics, vol. 214, pp. 320-334 . https://doi.org/10.1016/j.engfracmech.2019.03.001
For narrow-gap Alloy 52 dissimilar metal welds, the fusion boundary between the ferritic pressure vessel steel and austenitic Ni-base alloy weld metal is the weakest region from fracture mechanical perspective. Producing of the pre-crack for fracture
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fbddf66fc1523c146fa6565adcae157
https://doi.org/10.1016/j.engfracmech.2019.03.001
https://doi.org/10.1016/j.engfracmech.2019.03.001
Autor:
Roman Mouginot, Sebastian Lindqvist, Matias Ahonen, Hannu Hänninen, Teemu Sarikka, Ulla Ehrnstén, Zaiqing Que, Iikka Virkkunen
Publikováno v:
Ahonen, M, Mouginot, R, Sarikka, T, Lindqvist, S, Que, Z, Ehrnstén, U, Virkkunen, I & Hänninen, H 2020, ' Effect of thermal ageing at 400 °C on the microstructure of ferrite-austenite interface of nickel-base alloy narrow-gap dissimilar metal weld ', Metals, vol. 10, no. 3, 421 . https://doi.org/10.3390/met10030421
Metals
Volume 10
Issue 3
Metals, Vol 10, Iss 3, p 421 (2020)
Metals
Volume 10
Issue 3
Metals, Vol 10, Iss 3, p 421 (2020)
Dissimilar metal welds (DMWs) are a key design feature in nuclear power systems, typically involving ferritic low-alloy steels (LAS), stainless steels (SS), and nickel-base alloys. They are, however, a potential concern regarding the structural integ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af4f9209a1ee76c655b34622de8d67b0
https://cris.vtt.fi/en/publications/67f1d424-e4e6-45a9-9eb4-5d292f2fdaf3
https://cris.vtt.fi/en/publications/67f1d424-e4e6-45a9-9eb4-5d292f2fdaf3
Publikováno v:
Lindqvist, S, Sarikka, T, Ahonen, M & Hänninen, H 2018, ' The effect of crack path on tearing resistance of a narrow-gap Alloy 52 dissimilar metal weld ', Engineering Fracture Mechanics, vol. 201, pp. 130-143 . https://doi.org/10.1016/j.engfracmech.2018.05.043
Fracture mechanical testing of welds with strength mismatch can lead to deviation of the crack path from the initial crack growth plane. Current fracture mechanics standards do not give guidance for analyses of the effect of crack path on the tearing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e845064943e9d01cc46df62a5816ed5c
https://doi.org/10.1016/j.engfracmech.2018.05.043
https://doi.org/10.1016/j.engfracmech.2018.05.043
Autor:
Pekka Nevasmaa, Roman Mouginot, Matias Ahonen, Hannu Hänninen, Ulla Ehrnstén, Päivi Karjalainen-Roikonen, Teemu Sarikka
Publikováno v:
Sarikka, T, Ahonen, M, Mouginot, R, Nevasmaa, P, Karjalainen-Roikonen, P, Ehrnstén, U & Hänninen, H 2017, ' Effect of mechanical mismatch on fracture mechanical behavior of SA 508-Alloy 52 narrow gap dissimilar metal weld ', International Journal of Pressure Vessels and Piping, vol. 157, pp. 30-42 . https://doi.org/10.1016/j.ijpvp.2017.08.003
In modern pressurized water reactor (PWR) designs, dissimilar metal welds (DMW) between the reactor pressure vessel (RPV) nozzles and safe-ends connected to the main coolant pipes are manufactured using a narrow-gap welding (NGW) technique. In additi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5d6db4c8f718d840841e221bcd67db3
https://doi.org/10.1016/j.ijpvp.2017.08.003
https://doi.org/10.1016/j.ijpvp.2017.08.003
Autor:
Teemu Sarikka, Roman Mouginot, Matias Ahonen, Sebastian Lindqvist, Ulla Ehrnstén, Pekka Nevasmaa, Hannu Hänninen
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783030046385
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::141dadf149661c13ec66e029dac4b04e
https://doi.org/10.1007/978-3-030-04639-2_134
https://doi.org/10.1007/978-3-030-04639-2_134
Autor:
Matias Ahonen, Sebastian Lindqvist, Teemu Sarikka, Jari Lydman, Roman Mouginot, Ulla Ehrnstén, Pekka Nevasmaa, Hannu Hänninen
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783030046385
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14d99c6a2b9c2ac36bfb9fb8bcb0e4c6
https://doi.org/10.1007/978-3-030-04639-2_132
https://doi.org/10.1007/978-3-030-04639-2_132
Autor:
Pekka Nevasmaa, Hannu Hänninen, Roman Mouginot, Päivi Karjalainen-Roikonen, Matias Ahonen, Ulla Ehrnstén, Teemu Sarikka
Publikováno v:
Sarikka, T, Ahonen, M, Mouginot, R, Nevasmaa, P, Karjalainen-Roikonen, P, Ehrnsten, U & Hänninen, H 2016, ' Microstructural, mechanical, and fracture mechanical characterization of SA 508-Alloy 182 dissimilar metal weld in view of mismatch state ', International Journal of Pressure Vessels and Piping, vol. 145, pp. 13-22 . https://doi.org/10.1016/j.ijpvp.2016.06.004
In dissimilar metal welds (DMWs), the mismatch in material properties between the two joined materials and their abrupt local variation in different narrow zones of the weld are of importance because the local strength mismatch state plays an importa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e08ca08b3741c92a716bcc225bca2a8f
https://cris.vtt.fi/en/publications/463c2ad2-fbd2-4d49-828e-1ff5081fdf02
https://cris.vtt.fi/en/publications/463c2ad2-fbd2-4d49-828e-1ff5081fdf02