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Ion-irradiated FeCr alloys are useful for understanding and predicting neutron-damage in the structural steels of future nuclear reactors. Previous studies have largely focused on the structure of irradiation-induced defects, probed by…

Fe-Cr binary alloys serve as simplified model systems to study irradiation damage relevant to fusion structural materials. Here, Fe-3%Cr and Fe-5%Cr samples were irradiated with 4 MeV Fe ions under a dose rate of 4x10^5 dpa/s across a…

Pure Fe and model Fe-Cr alloys containing 5, 10 and 14%Cr were irradiated with Fe+ ions at a maximum energy of 2MeV to the same dose of 0.6dpa at temperatures of 300 C, 400 C and 500 C, and at dose rates corresponding to 6 x 10-4 dpa/s and…

Materials Science · Physics 2013-11-18 Christopher D Hardie , Ceri A Williams , Shuo Xua , Steve G Roberts

Understanding the mechanisms of plasticity in structural steels is essential for the operation of next-generation fusion reactors. Elemental composition, particularly the amount of Cr present, and irradiation can have separate and…

Materials Science · Physics 2022-07-06 Kay Song , Hongbing Yu , Phani Karamched , Kenichiro Mizohata , David Armstrong , Felix Hofmann

FeCrAl ODS steels for accident tolerant fuel claddings are designed to bear high-Cr and Al for enhancing oxidation resistance. In this study, we investigated the effects of Cr content on ion-irradiation hardening of three ODS ferritic…

Materials Science · Physics 2023-11-06 Zhexian Zhang , Siwei Chen , Kiyohiro Yabuuchi

Cr2AlC materials were irradiated with 7 MeV Xe26+ ions and 500 keV He2+ ions at room temperature. A structural transition with an increased c lattice parameter and a decreased a lattice parameter occurs after irradiation to doses above 1…

Materials Science · Physics 2021-03-12 Qing Huang , Han Han , Renduo Liu , Guanhong Lei , Long Yan , Jie Zhou , Qing Huang

Irradiation-induced ductility loss is a major concern facing structural steels in next-generation nuclear reactors. Currently, the mechanisms for this are unclear but crucial to address for the design of reactor components. Here, the…

This work is motivated by the need for large-scale simulations to extract physical information on the iron-chromium system that is a binary model alloy for ferritic steels used or proposed in many nuclear applications. From first-principles…

Materials Science · Physics 2013-07-30 Maximilien Levesque , Enrique Martínez , Chu-Chun Fu , Maylise Nastar , Frédéric Soisson

Developing a comprehensive understanding of the modification of material properties by neutron irradiation is important for the design of future fission and fusion power reactors. Self-ion implantation is commonly used to mimic neutron…

Materials Science · Physics 2020-06-05 N. W. Phillips , H. Yu , S. Das , D. Yang , K. Mizohata , W. Liu , R. Xu , R. J. Harder , F. Hofmann

Energetic ion irradiation usually decreases superconducting critical temperature(Tc), with the few exceptions involving increases up to a few K only. However, our recent 2.5X10^15 Ar/cm2 irradiations by 1.5 MeV Ar6+ enhanced Tc of the…

Superconductivity · Physics 2022-04-08 Kriti R Sahu , Thomas Wolf , A K Mishra , A Banerjee , V Ganesan , Udayan De

The effect of He+ ion irradiation on a distribution of Cr atoms in model (EFDA) Fe(100-x)Cr(x) (x=5.8, 10.75, 15.15) was studied by means of conversion electrons Mossbauer spectroscopy. The alloys were irradiated to the dose of 1.2E16 ions…

Materials Science · Physics 2018-07-06 S. M. Dubiel , J. Zukrowski , Y. Serruys

The structural and magnetic properties of Fe$_{1-x}$Ni$_x$~($x$ = 0.32, 0.36, 0.40, 0.50) alloys have been investigated using synchrotron based x-ray diffraction (XRD) technique with x-rays of wavelength 0.63658 \AA\ down to 50 K…

The effects of Fe-ion irradiation on the crystal structure and superconducting properties of MgB$_2$ thin films were investigated. Pristine samples were prepared using hybrid physical-chemical vapor deposition (HPCVD), and ion irradiation…

Defects formed under irradiation in the bulk act as additional pinning centers resulting in the well-known effect of radiation-induced hardening. On the other hand, there is a poorly understood but well-established effect of instant and…

Neutron diffraction and small angle scattering experiments have been carried out on the double-isotopic polycrystalline sample (7Li0.82Fe0.18OD)FeSe. Profile refinements of the diffraction data establish the composition and reveal an…

Effect of He ion irradiation on three model Fe(100-x)Cr(x) alloys (x =5.8, 10.75 and 15.15) was investigated with the conversion electron M\"ossbauer spectroscopy. The study of the alloys irradiated with 25 keV ions revealed that the…

Materials Science · Physics 2014-11-21 S. M. Dubiel , J. Cieslak , H. Reuther

Low-temperature variable-energy electron irradiation was used to induce non-magnetic disorder in a single crystal of hole-doped iron-based superconductor, Ba$_{1-x}$K$_x$Fe$_2$As$_2$, $x=$0.80. To avoid systematic errors, the beam energy…

Superconductivity · Physics 2023-06-23 Kyuil Cho , M. Konczykowski , M. A. Tanatar , I. I. Mazin , Yong Liu , T. A. Lograsso , R. Prozorov

Effect of atomic disordering induced by irradiation with fast neutrons on the properties of the normal and superconducting states of polycrystalline samples FeSe has been studied. The irradiation with fast neutrons of fluencies up to…

Superconductivity · Physics 2011-11-28 A. E. Karikin , T. Wolf , A. N. Vasil'ev , O. S. Volkova , B. N. Goshchitskii

Data available in the literature of lattice parameter changes in Ni, Cu and MgO single crystals irradiated in neutron reactors are tentatively reproduced using ad hoc ion irradiation experiments. The nature and energy of the ions were…

Materials Science · Physics 2021-10-27 Xin Jin , Alexandre Boulle , Jérôme Bourcoit , Aurélien Debelle

Within the framework of the lattice-statics and static fluctuation-wave methods, the available energies of strain-induced interaction of interstitial-interstitial, interstitial-substitutional and substitutional-substitutional impurity…

Materials Science · Physics 2014-06-03 V. A. Tatarenko , S. M. Bokoch , V. M. Nadutov , T. M. Radchenko , Y. B. Park
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