UKAEA Journals

Showing 1 - 10 of 37 Journals Results
2021
UKAEA-CCFE-PR(21)12

Small punch creep (SPC) testing represents an effective way to rapidly assess the creep performance of novel materials and potentially monitor degradation of in-service components. Recent progress in standardisation has also led to improvements in data analysis. However, estimation of equivalent uniaxial stresses is still somewhat challenging and h…

Preprint
2021
UKAEA-CCFE-PR(21)03

The resistive wall mode (RWM) control on the HL-2M tokamak is simulated with the MARS-F code [Liu Y Q et al 2000 Phys. Plasmas 7 3681], aiming at quantifying control current and voltage requirements when more realistic issues are taken into account, i.e. the control power saturation and the sensor signal noise. The fluid model predicts a narrow st…

Preprint Purchase
The published version of this paper is currently under embargo and will be available on 16/04/2022
2021
UKAEA-CCFE-PR(21)02

In quiescent H-mode (QH-mode) regime, edge harmonic oscillations (EHOs) are believed to provide necessary radial transport to prevent occurrence of large edge localized modes. A systematic modeling study is performed here on the low-n EHOs in a DIII-D QH-mode plasma [Chen et al. 2016 Nucl. Fusion 56 076011], by utilizing the MARS-Q code [Liu et a…

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The published version of this paper is currently under embargo and will be available on 22/03/2022
2020
UKAEA-CCFE-PR(20)132

Mechanical constitutive models of metals undergoing deformation in three dimensions can be challenging to validate without loss of generality. For example, creep-induced stress relaxation in stainless steels has previously been studied using axisymmetric notched-bar tests which control the triaxiality of the initial stress state. However, such expe…

Preprint
2020
UKAEA-CCFE-PR(20)126

Martensitic stainless steels have been widely used in industries due to their high strength and good corrosion resistance performance. Precipitation-hardened (PH) martensitic stainless steels are featured by their very high strength compared with other stainless steels, around 3-4 times of the strength of austenitic stainless steels such as 304 and…

Published
2020
UKAEA-CCFE-PR(20)119

Supramolecular chemistry offers an exciting opportunity to assemble materials with molecular precision. However, there remains an unmet need to turn molecular self-assembly into functional materials and devices. Harnessing the inherent properties of both disordered proteins and graphene oxide (GO), we report a disordered protein-GO co-assembling sy…

Published
2020
UKAEA-CCFE-PR(20)112

A technology readiness assessment has been carried out on materials under development within the EUROfusion materials work package (WPMAT). This covers materials for structural, high heat flux and functional applications (breeder materials and coatings are not covered). The baseline materials have been assigned Material Technology Readiness Levels …

Preprint Purchase
The published version of this paper is currently under embargo and will be available on 27/02/2023
2020
UKAEA-CCFE-PR(20)84

Precipitation hardened Copper-Chromium-Zirconium (CuCrZr) alloy is a prime candidate for divertor components in future European DEMOnstration fusion reactors. To develop the DEMO Design Criteria for In-vessel Components (DDC-IC), the failure criterion of CuCrZr needs to be investigated. Hence, the effects of stress triaxiality and loading…

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The published version of this paper is currently under embargo and will be available on 24/09/2022
2020
UKAEA-CCFE-PR(20)70

Determining tensile properties from small punch test is being pursued actively in the nuclear industry due to the limited volume of material such tests use compared with standard tests which can be critical when considering active or development samples. One of the crucial challenges in harnessing the full potential of this technique is formulat…

Preprint Published
2020
UKAEA-CCFE-PR(20)14

Crystal plasticity finite element (CPFE) modelling is an effective tool from which detailed information on the meso-scale behaviour of crystalline metallic systems can be extracted and used, not only to enhance the understanding of material behaviour under different loading conditions, but also to improve the structural integrity assessment of e…

Preprint Purchase
The published version of this paper is currently under embargo and will be available on 07/06/2022