Radiation Effects in Structural Materials for Fusion Power Plants: the Outcomes of the EU Fusion Program

Boutard, Jean-Louis; Dudarev, S. L.; Diegele, E.

doi:10.1007/978-1-4020-8422-5_24

Cited by 6 publications

(3 citation statements)

References 52 publications

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“…1−10 Next-generation nuclear reactors call for exploration of advanced structural materials that can sustain extreme radiation up to several hundred displacements-per-atom (dpa). 11,12 Nanostructured materials, such as nanocrystalline, nanolayered, nanoporous (np), and nanotwinned (nt) materials, have high-density defect sinks that can alleviate radiation damage. Fine grained materials have shown significantly reduced defect density and radiation induced hardening.…”

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confidence: 99%

“…High-density irradiation induced defect clusters, such as dislocation loops and networks, voids, bubbles, and stacking fault tetrahedra (SFTs), can significantly undermine the mechanical properties of irradiated materials in form of irradiation hardening, embrittlement, etc. − Next-generation nuclear reactors call for exploration of advanced structural materials that can sustain extreme radiation up to several hundred displacements-per-atom (dpa). , Nanostructured materials, such as nanocrystalline, nanolayered, nanoporous (np), and nanotwinned (nt) materials, have high-density defect sinks that can alleviate radiation damage. Fine grained materials have shown significantly reduced defect density and radiation induced hardening. − Grain boundary affected zones have been observed in various nanomaterials where defect clusters migrate toward grain boundaries swiftly before being absorbed.…”

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confidence: 99%

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In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals

Kobayashi

Chen

et al. 2015

Nano Lett.

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High energy particles introduce severe radiation damage in metallic materials, such as Ag. Here we report on the study on twin boundary (TB) affected zone in irradiated nanotwinned Ag wherein time accumulative defect density and defect diffusivity are substantially different from those in twin interior. In situ studies also reveal surprising resilience and self-healing of TBs in response to radiation. This study provides further support for the design of radiation-tolerant nanotwinned metallic materials.

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confidence: 99%

In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals

Kobayashi

Chen

et al. 2015

Nano Lett.

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“…3 the creep performance of two grades of ODS Eurofer, an industrially produced corrosion resistant ODS alloy (PM2000) and a research grade ODS alloy (12YWT) are compared with that of Eurofer. 52 The superior performance of the ODS steels relative to the conventional RAFM Eurofer is clear. In particular, the 12YWT alloy (which is a typical modern ferritic ODS steel) 23 shows significant improvement in creep life over Eurofer.…”

Section: Reduced Activation Oxide Dispersion Strengthened Steelsmentioning

confidence: 97%

Critical Assessment 12: Prospects for reduced activation steel for fusion plant

Gorley

2015

Materials Science and Technology

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The development of new, high performance reduced activation materials is increasingly recognised as one of the key enabling technologies required for the advancement of civil fusion power. Reduced activation steels are considered the leading materials for fusion reactor blanket structural materials. The manufacturing technologies and database for the current leading reduced activation steels have reached a state of maturity where basic design and implementation can be addressed. However, there remain concerns with these materials due to an incomplete irradiation database and because of their limited operational temperature window. The requirements of these steels along with various proposed methods to improve reduced activation steels are critically assessed, and some indications given on future paths for progress.

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A Review on the Radiation Response of Nanoporous Metallic Materials

Wang

Zhang

2018

JOM

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Radiation Effects in Structural Materials for Fusion Power Plants: the Outcomes of the EU Fusion Program

Cited by 6 publications

References 52 publications

In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals

In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals

Critical Assessment 12: Prospects for reduced activation steel for fusion plant

A Review on the Radiation Response of Nanoporous Metallic Materials

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