Results 171 to 180 of about 1,419 (206)

Manufacturing of ODS RAFM Steel: Mechanical and Microstructural Characterization

Materials Science Forum, 2016
Ferritic ODS 14Cr steels reinforced by means of Yttrium oxide nanoclusters represent one of the options for future structural applications in nuclear Generation IV reactors. Due to their high tensile properties and resistance to irradiation damage, Oxide Dispersion Strengthened Steels (ODS-S) have been suggested for nuclear fusion applications.
Claudio Testani, Paolo Emilio di Nunzio, Ilaria Salvatori   +2 more
openaire   +1 more source

Mechanical and microstructural properties of a hipped RAFM ODS-steel

Journal of Nuclear Materials, 2002
Abstract Oxide dispersion strengthened (ODS) materials for structural applications in future fusion power reactors would allow to increase the operating temperature to approximately 650 °C. Two ODS variants of the 9%CrWVTa-RAFM steel EUROFER 97 with Y2O3 contents of 0.3 and 0.5 wt% have been produced.
Lindau, R., Möslang, A., Schirra, M., Schlossmacher, P., Klimenkov, M.   +4 more
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Modeling the constitutive behavior of RAFM steels under irradiation conditions

Journal of Nuclear Materials, 2011
Abstract A coupled viscoplastic deformation damage model will be presented which is modified to take into account irradiation induced hardening and its recovery due to inelastic deformation and/or high temperature annealing. The model allows the prediction of the constitutive behavior of RAFM steels under arbitrary creep-fatigue and irradiation ...
Aktaa, J., Petersen, C.
openaire   +2 more sources

Solubility of uranium at very low concentration in RAFM steel

Journal of Nuclear Materials, 2002
Abstract In this work we present the results to develop standards of reduced activation ferritic–martensitic (RAFM) alloys for the quantitative determination of uranium in these materials. The results show that a very low efficiency can be obtained during alloying of uranium due to the segregation to the slags. The solubility of U can be increased by
A. Paúl, L.C. Alves, J.A. Odriozola, J.C. Soares   +3 more
openaire   +1 more source

Improvement of RAFM steels through thermo-mechanical treatments

2015
*contact: Jan Hoffmann E‐Mail: j.hoffmann@kit.edu Phone: +49 (0) 721 6082 3476 Improvement of RAFM steels through thermo‐mechanical Materials and Process Batch W Cr Ta Fe EUROFER97‐2 993402 1.06 8.9 0.18 0.04 0.15 0.1 bal. EUROFER97‐2 993391 1.08 8.83 0.2 0.02 0.12 0.1 bal.
Hoffmann, J., Rieth, M., Commin, L., Fernandez, P., Roldan, M.   +4 more
openaire   +3 more sources

Effects of tantalum on austenitic transformation kinetics of RAFM steel

Journal of Iron and Steel Research International, 2017
The RAFM (reduced activation ferritic/martensitic) steels containing different tantalum contents (0 wt. %, 0.027 wt. %, 0.073 wt. %) were designed and cast. Differential scanning calorimetry and optical microscopy were employed to explore the influence of tantalum content on the austenitic transformation of RAFM steels.
Jian-guo Chen, Yong-chang Liu, Chen-xi Liu, Bi-yu Yan, Hui-jun Li   +4 more
openaire   +1 more source

Comparative study on hot deformation behaviour of P91, RAFM-CLAM and Low C RAFM-CLAM steels by processing maps

Fusion Engineering and Design, 2019
Abstract The comparative study of high temperature deformation behaviour of P91, RAFM-CLAM and Low C RAFM-CLAM steels was done from compression deformation data in the temperature range of 850–1100 °C and the strain rate range of 10−3–10 s-1. The processing maps in terms of strain rate sensitivity (m), % efficiency of power dissipation (ƞ) and the ...
Naimish S. Shah, Jayanta K. Chakravartty, Apu Sarkar   +2 more
openaire   +1 more source

Wire-Arc Additive Manufacturing of Reduced Activation Ferritic Martensitic (RAFM) Steel

2022
RAFM steel has been considered as the candidate material for an in-vessel component of the fusion wall reactor. Known as F82H in Japan and Eurofer-97 in Europe, RAFM steel is not commercially available. The goal of this research project is to fabricate and study the technical feasibility of producing RAFM steel welding wire with wire arc AM.
Reichenbach, Alexandar, Silwal, Bishal
openaire   +1 more source

Determining irradiation damage and recovery by instrumented indentation in RAFM steel

Journal of Nuclear Materials, 2011
Abstract The mechanical behavior of specific reduced-activation ferritic-martensitic steels (RAFM), designed for fusion applications, is investigated in the present study. Eurofer97 and F82H-mod specimens have been neutron-irradiated in the High Flux Reactor at Petten (HFR) up to a dose of 15 dpa at 250–450 °C. An indentation method [1] , making use
Sacksteder, I., Schneider, H. C., Materna-Morris, E.   +2 more
openaire   +2 more sources

Oxidation behavior of 9Cr-RAFM steel at high temperature

Ironmaking & Steelmaking: Processes, Products and Applications
The effect of yttrium on the mechanism of oxidation film formation of the 9Cr reduced activation ferritic/martensitic (9Cr-RAFM) steel was investigated. Four alloys yttrium contents ranging from 0 to 0.065% were melted in a vacuum induction furnace and subjected to continuous isothermal oxidation experiments.
Guoxing Qiu, Jianing Li, Chong Bai, Yongkun Yang, Yaru Cui, Xiaoming Li   +5 more
openaire   +1 more source