India - UK Civil Nuclear Collaboration: Development of Radiation Damage Resistant High Entropy Alloys for Advanced Nuclear Systems

Lead Research Organisation: University of Oxford
Department Name: Materials

Abstract

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Publications

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Zhao S (2021) Amorphization in extreme deformation of the CrMnFeCoNi high-entropy alloy. in Science advances

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Zhang Z (2022) The effects of irradiation on CrMnFeCoNi high-entropy alloy and its derivatives in Progress in Materials Science

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Scales R (2020) On the brittle-to-ductile transition of the as-cast TiVNbTa refractory high-entropy alloy in Materialia

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

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Liu J (2023) Controlling microstructure and mechanical properties of Ti-V-Cr-Nb-Ta refractory high entropy alloys through heat treatments in Journal of Alloys and Compounds

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Liu J (2023) Origin of age softening in the refractory high-entropy alloys in Science Advances

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Li B (2020) Measuring the Brittle-to-Ductile Transition Temperature of Tungsten-Tantalum Alloy Using Chevron-Notched Micro-Cantilevers in SSRN Electronic Journal

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Li B (2020) Measuring the brittle-to-ductile transition temperature of tungsten-tantalum alloy using chevron-notched micro-cantilevers in Scripta Materialia

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Kareer A (2019) Short communication: 'Low activation, refractory, high entropy alloys for nuclear applications' in Journal of Nuclear Materials

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Heuer S (2020) Microstructural and micromechanical assessment of aged ultra-fast sintered functionally graded iron/tungsten composites in Materials & Design

 
Description several new alloy compositions some of which shoudl nto be taken forward
Exploitation Route make sure soem alloys are not taken forward
Sectors Aerospace

Defence and Marine

Energy
 
Description Alloys developed are being used in a joint UK USA irradiation campaign
First Year Of Impact 2024
Sector Energy
 
Title Research data for: Origin of age softening in the refractory high-entropy alloys 
Description This dataset contains the raw data used in the study on the "Origin of Age Softening in Refractory High-Entropy Alloys". It includes the 3D FIB/SEM dataset, nanoindentation datasets, Correlative SEM/EDX/EBSD dataset, APT dataset, STEM-EDX datasets, STEM-EELS dataset, and the TKD dataset.Description of the data and file structureThe raw data were collected using a series of advanced microscopy techniques and a nanoindenter from Ti-V-Nb-Ta high-entropy alloys. Details on the materials and the data acquisition parameters can be found in the paper "Origin of Age Softening in Refractory High-Entropy Alloys" by J. Liu et al. in Science Advances.Datasets include: 1. '3D FIB-SEM'Image stack.raw: This is a stack of two-dimensional scanning electron microscopy (SEM) images acquired by serially sectionning using a focused ion beam (FIB). The data can be accessed using commercial software Avizo or the open-source ImageJ software.Voxel size.txt: This file includes the voxel size information for the image stack.2. 'Nanoindentation' This folder contains the raw nanoindentation datasets from the four samples studied in the research. NanoSuite was used to extract the values of modulus and hardness.TiVNbTa_Wisc_700C_1day.mss: Nanoindentation data from the TiVNbTa sample after 1-day aging at 700°C.TiVNbTa_Wisc_700C_5days.mss: Nanoindentation data from the TiVNbTa sample after 5 days of aging at 700°C.TiVNbTa_Wisc_700C_40days.mss: Nanoindentation data from the TiVNbTa sample after 40 days of aging at 700°C.TiVNbTa_Wisc_homogenised.mss: Nanoindentation data from the homogenized TiVNbTa sample.3. 'APT' This folder contains the raw atom probe tomography (APT) data used to analyze the chemical composition at atomic resolution from the selected samples in the study. AP Suite was used to analyze and visualize the datasets.#1.HITS: Raw atom probe tomography data from the matrix of the Ti-V-Nb-Ta sample after 1-day aging at 700°C.#2.HITS to #6.HITS: Additional raw atom probe tomography datasets following the same description as #1.HITS.#7.HITS and #8.HITS: Raw atom probe tomography data from the matrix of the Ti-V-Nb-Ta sample after 40-day aging at 700°C.Precipitate.HITS: Raw atom probe tomography data containing a precipitate in the Ti-V-Nb-Ta sample after 40-day aging at 700°C.4. 'STEM-EDX' This folder contains the raw data of the energy-dispersive X-ray (EDX) line scan used for the chemical analysis of the Ti-V-Nb-Ta sample after 40-day aging at 700°C. Aztec version 4.2 was used to interpret and extract the quantification line scan.TiVNbTa_40dayProject 1data: This folder includes the raw EDX data.reports: This folder includes two line scanning data in CSV format.Project 1.oip: This is the shortcut to use Aztec to open.5. 'STEM-EELS' This folder contains the energy electron loss spectroscopy (EELS) data used to analyze the chemical composition and oxidation states of specific elements in the TiVNbTa sample after 40-day aging at 700°C. Digital Micrograph can be used to open and analyze the .dm3 file.Core loss O reconstructed with 3 components.dm3: This is the aligned EELS map.GB precipitate.msa: This is the EELS spectrum extracted from a precipitate at the grain boundary in the EELS map.intragrainular precipitate.msa: This is the EELS spectrum extracted from a precipitate in the metal matrix in the EELS map.matrix.msa: This is the EELS spectrum extracted from the metal matrix in the EELS map.6. 'TKD' This folder contains the on-axis transmission Kikuchi diffraction (TKD) data used to interpret the crystallographic orientation of nanoscale features in the Ti-V-Nb-Ta sample after 40-day aging at 700°C. The .ctf files can be accessed using the Oxford Instruments Channel 5 software or the open-source Matlab codes at https://mtex-toolbox.github.io/.On_axis_5nm_1p5nA.ctf: TKD data from the TiVNbTa sample aged at 700°C for 40 days.7. 'SEM-EDX-EBSD' This folder contains co-located energy-dispersive X-ray (EDX) chemical and electron backscatter diffraction (EBSD) orientation mapping from the selected samples, showing the chemical and crystallographic orientation information. Aztec version 4.2 was used to interpret the data and extract the maps.TiVNbTa_40dayProject 1data: This folder includes the raw EDX and EBSD data.Project 1.oip: This is the shortcut to use Aztec to open.TiVNbTa_homogenisedProject 1data: This folder includes the raw EDX and EBSD data.Project 1.oip: This is the shortcut to use Aztec to open.Methods3D FIB/SEM data were acquired with the Zeiss Crossbeam 540 dual-beam instrument.APT data were obtained using a CAMECA LEAP 5000XR instrument.SEM-EDX-EBSD data were collected using the Oxford Instruments XmaxN 150 EDX detector, and the Oxford Instruments Nordlys Max EBSD detector on a Zeiss Crossbeam 540 dual-beam instrument.STEM-EDX data were obtained with a Jeol JEM-3000F STEM equipped with an Oxford Instruments EDX detector.STEM-EELS data were collected on a Cs-corrected JEOL ARM 200F. .TKD data were acquired using a Zeiss Merlin FEG-SEM system equipped with a Bruker e-flash high-resolution EBSD detector and an OPTIMUSTM TKD head.Nanoindentation data were collected using an Agilent G200 nanoindenter with a Berkovich diamond indenter. 
Type Of Material Database/Collection of data 
Year Produced 2023 
Provided To Others? Yes  
URL https://figshare.com/articles/dataset/Research_data_for_Origin_of_age_softening_in_the_refractory_hi...