Development of Radiation Damage Resistant High Entropy Alloys for Advanced Nuclear Systems

Lead Research Organisation: University of Manchester
Department Name: Materials

Abstract

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.

Publications

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Barron P (2022) Phase stability of V- based multi-principal element alloys in Materials Science and Technology

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Carruthers A (2021) Novel reduced-activation TiVCrFe based high entropy alloys in Journal of Alloys and Compounds

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Carruthers A (2021) An assessment of the high-entropy alloy system VCrMnFeAlx in Journal of Alloys and Compounds

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Carruthers A (2022) Investigation of the Superlattice Phases Formed in Ta72ru28 in SSRN Electronic Journal

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Pickering EJ (2021) High-Entropy Alloys for Advanced Nuclear Applications. in Entropy (Basel, Switzerland)

 
Description We have developed a promising set of novel alloys for nuclear fusion applications. These alloys are so-called 'high entropy' alloys, which are formed of mixtures of five or more different elements in near-equal ratios. In this work, we used low-activiation elements to form the alloys - these are elements that do not become radioactive for long periods when they are placed in a nuclear reactor (hence, the use of the alloys will not result in long-lived nuclear waste).
Exploitation Route The newly-developed alloys will be further investigated by a PhD student, who will work on scaled-up versions of the compositions of interest (i.e., larger amounts that can be mechanically tested, etc). This student started on the Fusion CDT in September 2022.
Sectors Energy

 
Title An assessment of the high-entropy alloy system VCrMnFeAlx 
Description Data used in paper 
Type Of Material Database/Collection of data 
Year Produced 2021 
Provided To Others? Yes  
Impact None that I am aware of to date. 
URL https://zenodo.org/record/4633926
 
Title Investigation of the superlattice phases formed in Ta72Ru28 
Description Data analysed in the above paper 
Type Of Material Database/Collection of data 
Year Produced 2022 
Provided To Others? Yes  
Impact None that I am aware of as yet. 
URL https://zenodo.org/record/6513574
 
Title Novel Reduced-Activation TiVCrFe Based High Entropy Alloys containing a High-Entropy Intermetallic 
Description Raw data pertaining to the paper made publicly available 
Type Of Material Database/Collection of data 
Year Produced 2019 
Provided To Others? Yes  
Impact None that I am aware of, but it has been downloaded 190 times as of Feb 2023. 
URL https://zenodo.org/record/3541654
 
Title The development of low-activation, multi-principal element alloys for nuclear fusion applications: Data 
Description Data and images for PhD thesis titled "The development of low-activation, multi-principal element alloys for nuclear fusion applications" 
Type Of Material Database/Collection of data 
Year Produced 2021 
Provided To Others? Yes  
Impact None that I am aware of to date, although it has been downloaded 6 times as of Feb 2023. 
URL https://zenodo.org/record/4643803
 
Description Collaboration with Simon Middleburgh (and group) at Nuclear Futures Institute, Bangor University 
Organisation Bangor University
Department Nuclear Futures Institute
Country United Kingdom 
Sector Academic/University 
PI Contribution Undertook a literature review of HEAs for advanced nuclear applications, with focus on proposed mechanisms of irradiation resistance in HEAs. Have produced and irradiated alloys that will be characterised to examine the effect of thermal conductivity on irradiation damage in HEAs.
Collaborator Contribution Bangor undertook a literature review examining the modelling of irradiation damage in HEAs. They have also developed models for predicting the effect of thermal conductivity on irradiation damage in HEAs, which will be compared to future experimental results obtained by Manchester.
Impact Paper: High-Entropy Alloys for Advanced Nuclear Applications (https://www.mdpi.com/1099-4300/23/1/98). Not multi-disciplinary.
Start Year 2020
 
Description High Entropy Materials workshop (Henry Royce Institute) 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach National
Primary Audience Postgraduate students
Results and Impact The Royce Institute Hub Building hosted the First UK Workshop on High-Entropy Materials on Friday 9th September 2022. The workshop aimed to (i) identify and establish a UK community on high-entropy materials, (ii) create an inclusive forum for sharing ideas, (iii) enable greater networking and formation of new partnerships, especially between industry and academia, and (iv) highlight areas of challenge and opportunity in the field. The day comprised a mixture of short 10-minute talks from academics and industry, complemented by 2-minute 'elevator pitches' from early-career researchers (PDRAs and PhDs). Those submitting abstracts for 10-minute talks were asked to focus on one of three areas: (i) challenges, (ii) opportunities, or (iii) new ideas and methods of interest to the whole community.

In total, over 40 people attended in-person, with a further 40 participating via Zoom (the hybrid format was very successful). x14 different UK universities were represented, alongside participants from x5 companies and representatives from STFC and a Catapult. There were also a few international participants online (although the principal focus was the UK community).

Presentations covered a range of topics, including: high-throughput manufacture and screening of alloys, opportunities associated with functional high-entropy nanomaterials, and the challenges presented by sustainability considerations. Discussions were both lively and fruitful (regularly having to be cut short owing to time), and highlighted a number of opportunities for concerted action, including: better standardisation of data reported for new high-entropy materials (to allow for better comparisons), and the need for improved thermodynamic data. Further focussed discussions are already being planned between academics and industry, in anticipation of applying for UKRI funding.

Prizes for the best elevator pitches were sponsored by two industry partners - Qinetiq and Metalysis Ltd. The workshop was organised by Ed Pickering (Manchester, AMP RAL), Kathy Christofidou (Sheffield, AMP TPL) and Nick Jones (Cambridge), with assistance from the Royce Hub team.
Year(s) Of Engagement Activity 2022
 
Description Seminar at Warwick Manufacturing Group, uploaded to Youtube. 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact Seminar talk on high-entropy alloys for nuclear applications, which was uploaded to Youtube on 21st November 2022. It has gained 2,241 views since then (as of 20th February 2023).
Year(s) Of Engagement Activity 2022
URL https://www.youtube.com/watch?v=nHk1g6aPlBc&t=11s&ab_channel=bhadeshia123