Results 1 to 10 of about 1,419 (206)

The Effect of Precipitate Evolution on Austenite Grain Growth in RAFM Steel. [PDF]

Materials (Basel), 2017
To study the effects of various types of precipitates and precipitate evolution behavior on austenite (size and phase fraction) in reduced activation ferritic/martensitic (RAFM) steel, RAFM steel was heated to various austenitizing temperatures. The microstructures of specimens were observed using optical microscopy (OM) and transmission electron ...
Yan B, Liu Y, Wang Z, Liu C, Si Y, Li H, Yu J.   +6 more
europepmc   +6 more sources

Microstructure characterization of ODS-RAFM steels [PDF]

MRS Proceedings, 2009
Results of the microstructural characterization of four different RAFM ODS Eurofer 97 batches are presented and discussed. Analyses and observations were performed by nuclear microprobe and scanning and transmission electron microscopy.
Alves, E., Alves, L. C., Carvalho, P., Correia, J.B., Fernandes, H., Franco, N., Lindau, R., Mateus, R., Nunes, D., Silva, C.   +9 more
core   +3 more sources

A multi-scale microstructure to address the strength-ductility trade off in high strength steel for fusion reactors [PDF]

Nature Communications
Fusion reactor materials for the first wall and blanket must have high strength, be radiation tolerant and be reduced activation (low post-use radioactivity), which has resulted in reduced activation ferritic/martensitic (RAFM) steels. The current steels
Peng Gong, T.W.J. Kwok, Yiqiang Wang, Huw Dawson, Russell Goodall, David Dye, W. Mark Rainforth   +6 more
doaj   +2 more sources

Impact of seeded plasma impurities on D retention in RAFM steels

Nuclear Materials and Energy, 2020
The effect of He seeding (He+ ion fraction, cHe+, of ~5 and ~10%) to D plasma (ion flux ~ 1.5–2 × 1021 m−2s−1, sample temperature ~ 373 K, and incident ion energy ~ 100 eV) on D retention in various reduced-activation ferritic/martensitic (RAFM) steels ...
D. Nishijima, M. Tokitani, M.I. Patino, D. Nagata, A.V. Golubeva, R.P. Doerner   +5 more
doaj   +2 more sources

Preliminary study on the microstructure and hardness of wire and arc additively manufactured ODS-RAFM steel subjected to 2.5 MeV Fe ion irradiation

Nuclear Materials and Energy, 2023
This work aims at exploring the irradiation resistance of oxide-dispersion-strengthened reduced-activation ferritic/martensitic (ODS-RAFM) steel prepared by a rapid and cost-efficient method, wire and arc additive manufacturing (WAAM).
Yaju Zhou, Shengming Yin, Qilai Zhou, Junbo Peng, Hongtai Luo, Liping Guo, Heping Li, Youwei Yan   +7 more
doaj   +1 more source

Corrosive behavior of structural F82H RAFM steel by LTZO ceramic breeder pebbles

Nuclear Materials and Energy
In this study, corrosion behavior of F82H reduced activation ferritic/martensitic steel (RAFM) by LTZO (Li2+xTiO3+y solid solution with 20 wt% Li2ZrO3) ceramic breeder pebbles was investigated at 773–998 K in an inert sweep gas condition (Ar + 0.1 % H2).
Kosuke Kataoka, Keisuke Mukai, Juro Yagi, Motoki Nakajima, Jae-Hwan Kim, Takashi Nozawa   +5 more
doaj   +3 more sources

Evaluation of heat removal property in W/Cu/RAFM steel joint by using electron beam facility

Nuclear Materials and Energy, 2022
A reliable technique for creating joints between tungsten (W) and Reduced Activated Ferritic/Martensitic (RAFM) steel with a pure-copper (Cu) interlayer (W/Cu/RAFM steel) has been explored for developing the heat removal component in the baffle and dome ...
T. Yamashita, M. Tokitani, Y. Hamaji, J. Shen, H. Noto, S. Masuzaki, T. Muroga   +6 more
doaj   +1 more source

An improved dislocation density reliant model to address the creep deformation of reduced activation ferritic martensitic steel

Forces in Mechanics, 2022
The blanket module of nuclear fusion reactor is proposed to be made of reduced activation ferritic martensitic (RAFM) steel. Thus, in order to prevent the unprecedented failure, the creep response of RAFM steel must be studied meticulously.
Nilesh Kumar, Alen S. Joseph, Pankhuri Mehrotra, Surya D. Yadav   +3 more
doaj   +1 more source

Development of RAFM steels for high temperature applications guided by thermodynamic modelling

Nuclear Materials and Energy, 2022
Mechanical performance of reduced activation ferritic/martensitic (RAFM) steels for fission and fusion applications at high temperature (i.e. above the current limit of 550 °C) requires further improvement. In this contribution, we present the work aimed
O. Kachko, A. Puype, D. Terentyev, G. Bonny, W.Van Renterghem, R.H. Petrov   +5 more
doaj   +1 more source

The neglected activation of tantalum in reduced activation materials

Nuclear Materials and Energy, 2023
Due to the expression of “reduced activation”, the severe radioactivity of tantalum (Ta) after neutron irradiation in early decay years is easily neglected. In the presented study, after an irradiation of only 0.3 dpa by fission neutron and followed by a
Lei Zhang, Yufeng Du, Wentuo Han, Xiaoou Yi, Pingping Liu, Kenta Yoshida, Takeshi Toyama, Chi Xu, Qian Zhan, Yasuyoshi Nagai, Somei Ohnuki, Farong Wan   +11 more
doaj   +1 more source