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UKAEA-CCFE-PR(26)4582024
engineering components. Within the nuclear fusion energy industry, a remote laser welding technique will be extensively employed for the assembly and maintenance of in-vessel components, predominantly constructed from Eurofer97 steel. The welding process introduces significant re…
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UKAEA-CCFE-PR(26)4492024
This paper reports the use of combined microscopy and small angle neutron scattering (SANS) to probe into the compositional and size evolution of the primary carbides and nanoparticles (defined by a size threshold of 100 nm) in an additively manufactured high-alloy steel before and after heat treatment. The primary carbides show a marginal chang…
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UKAEA-CCFE-PR(26)4472024
The DEMOnstrative power plant (DEMO) project is currently leading the research endeavours within the fusion field with the goal of developing a next generation practical fusion reactor. Given the challenging nature of the application, it is essential to establish methodologies that can provide convenient and reliable characterisation of the chos…
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UKAEA-CCFE-PR(25)3982024
Notched small punch test (SPT) specimens with different types of notches have been adopted by many researchers to understand the fracture parameters of materials. However the specimen geometries have not been standardized and the effects of notch type on mechanical properties, failure mechanisms, and stress state of the tested materials need to …
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UKAEA-CCFE-PR(25)3632024
The extreme working conditions of the in-vessel components in nuclear fusion reactors require remote laser-welding for maintenance. However, this process induces heterogeneous residual stress, which can interact with microstructures, degrading mechanical properties. Involving the high-temperature operating environmen…
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UKAEA-CCFE-PR(25)3962023
As well as having suitable mechanical performance, fusion reactor materials for the first wall and blanket must be both radiation tolerant and low activation, which has resulted in the development of reduced activation ferritic/martensitic (RAFM) steels. The current steels suffer irradiation-induced hardening and embrittlement,…
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UKAEA-CCFE-PR(25)2902023
The augmentation of mechanical properties of reduced activation ferritic martensitic steels through the introduction of creep resistant nano-oxide particles produces a class of oxide dispersion strengthened steels, which have attracted significant interest as candidates for first wall supporting structural materials in future nuclear fusion reac…
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UKAEA-CCFE-PR(25)2842023
Nuclear fusion is a potential source of electricity which can address the environmental problems posed by fossil fuels. Eurofer97 steel is a primary structural material for breeding blanket and divertorcomponents in fusion Tokamaks.. Assembling and maintaining the structural integrity of these in-vessel components requires remote joint technique…
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UKAEA-CCFE-PR(23)1222023
A fusion power plant requires not only the control of the high energy plasma but also advanced techniques for maintenance and assembly in order to generate electricity consistently and safely. Laser welding is a promising technique for cutting and joining pipes and in-vessel components made of Eurofer97, a European baseline structural material. How…
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UKAEA-CCFE-PR(22)422022
Manufacturing austenite stainless steels (ASSs) using additive manufacturing (AM) is of great interest for cryogenic applications. Here, the mechanical and microstructural responses of a 316L ASS built by laser powder-bed-fusion (L-PBF) were revealed by performing in situ neutron diffraction tensile tests at the low-temperature range (from 373 to 1…
Showing 1 - 10 of 23 UKAEA Paper Results