Effectiveness of Ni-based and Fe-based cladding alloys in delaying hydrogen generation for small modular reactors with increased accident tolerance

Autor: Alan Matias Avelar, Fábio de Camargo, Vanessa Sanches Pereira da Silva, Claudia Giovedi, Alfredo Abe, Marcelo Breda Mourão

Publikováno v: Nuclear Engineering and Technology, Vol 55, Iss 1, Pp 156-168 (2023)

This study investigates the high temperature oxidation behaviour of a Ni–20Cr-1.2Si (wt.%) alloy in steam from 1200 °C to 1350 °C by Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS)

Externí odkaz: https://doaj.org/article/9f06a0ad8bfd49a78529af1473dc24e4

Modification of fuel performance code to evaluate iron-based alloy behavior under LOCA scenario

Autor: Claudia Giovedi, Alfredo Abe, Rafael O. R. Muniz, Daniel S. Gomes, Antonio T. Silva, Marcelo R. Martins

Publikováno v: Brazilian Journal of Radiation Sciences, Vol 9, Iss 2A (2021)

Accident tolerant fuels (ATF) has been studied since the Fukushima Daiichi accident in the research efforts to develop new materials which under accident scenarios could maintain the fuel rod integrity for a longer period compared to the cladding and

Externí odkaz: https://doaj.org/article/47c8c7458d0c4571a7440b24d22f7546

Oxidation of AISI 304L and 348 Stainless Steels in Water at High Temperatures

Autor: Alfredo Abe, Alan Matias Avelar, Marcelo Breda Mourão, Claudia Giovedi

Publikováno v: Materials Research v.23 n.6 2020
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Vol 23, Iss 6 (2020)
Materials Research, Volume: 23, Issue: 6, Article number: e20200373, Published: 30 NOV 2020

Oxidation of AISI 304L and 348 stainless steels was investigated in water at 1000 – 1350 °C by TGA, SEM, EDS, and Raman spectroscopy. Linear-Parabolic kinetics and multilayer oxide scales with voids were found for both alloys. Based on the experim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cba39b3e4004a36ea3864c8059cfbbd6
https://doi.org/10.1590/1980-5373-mr-2020-0373

Assessment of stainless steel 348 fuel rod performance against literature available data using TRANSURANUS code

Autor: Alfredo Abe, M. Cherubini, Francesco Saverio D'Auria, Claudia Giovedi

Publikováno v: EPJ Nuclear Sciences & Technologies, Vol 2, p 27 (2016)

Early pressurized water reactors were originally designed to operate using stainless steel as cladding material, but during their lifetime this material was replaced by zirconium-based alloys. However, after the Fukushima Daiichi accident, the proble

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6524a73a94d3912dbb33bd726c3a8098
https://doaj.org/article/0fbd9fe699c64f31b564bdd626d701e3

The Inversion Point of the Isothermal Reactivity Coefficient of the IPEN/MB-01 Reactor—II: Theoretical Analysis

Autor: Arlindo G. Mendonça, A. dos Santos, G. S. de Andrade e Silva, Rinaldo Fuga, Alfredo Abe

Publikováno v: Nuclear Science and Engineering. 151:237-250

TORT, an SN three-dimensional transport code, is employed for the analysis of the inversion point of the isothermal reactivity coefficient of the IPEN/MB-01 reactor. The analyses are performed in companion NJOY, AMPX-II, and TORT systems considering

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1e4b3a4a06c76f020b27e17541b2c06
https://doi.org/10.13182/nse05-a2543