New Dimensions of Engineering Science at Large Facilities
Lead Research Organisation:
University of Oxford
Department Name: Engineering Science
Abstract
The knowledge of multi-component, spatially varying stress and strain states and structural information is crucial for elucidating advanced concepts and models in materials science and strength engineering. Recent developments in neutron and high energy X-ray diffraction techniques at large scientific facilities have pushed the spatial resolution towards ever smaller length scales, at the same time improving data acquisition rates, making it possible to obtain large collections of diffraction patterns. However, because of the limitations imposed by gauge volume geometry and grain structure of the object the desired information is often contained within these data sets in implicit form, e.g. as convolutions or averages. Recently it has been demonstrated that robust inverse problem formulations akin to tomographic reconstruction methods can successfully be used to de-convolve detailed, spatially resolved information about material structure, texture and deformation. The present project will develop systematic approaches to the treatment of redundant high energy X-ray and neutron diffraction data sets for the purpose of extracting time-dependant, three-dimensional, multi-component maps of strain, texture and damage. X-ray diffraction experiments will be conducted on the JEEP beamline at Diamond, beamline ID15A at the ESRF, and neutron transmission data will be obtained on the ENGIN-X instrument at ISIS. The results will establish foundations for future methodologies for multi-dimensional analysis (3D and time-resolved) of strain, texture and structure of advanced engineering materials and components.
Publications
Fleury R
(2017)
Characterisation of handling and service surface damage on Nickel alloys caused by low velocity impacts of blunt hard objects
in Mechanics of Materials
Korsunsky A.M.
(2012)
A review of recent in situ deformation studies using synchrotron X-ray (Micro) beams
in Micro and Nanosystems
Abbey B
(2012)
Reconstruction of axisymmetric strain distributions via neutron strain tomography
in Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Clark J.N.
(2014)
Imaging Lattice dynamics in individual nanocrystals
in Optics InfoBase Conference Papers
Baimpas N
(2013)
The application of geometry corrections for Diffraction Strain Tomography (DST) analysis of a Ni-base superalloy blade
in Powder Diffraction
Clark JN
(2013)
Ultrafast three-dimensional imaging of lattice dynamics in individual gold nanocrystals.
in Science (New York, N.Y.)
Lunt A
(2018)
On the origins of strain inhomogeneity in amorphous materials
in Scientific Reports
Sui T
(2017)
Strain softening of nano-scale fuzzy interfaces causes Mullins effect in thermoplastic polyurethane.
in Scientific reports
Romano Brandt L
(2017)
Probing the deformation and fracture properties of Cu/W nano-multilayers by in situ SEM and synchrotron XRD strain microscopy
in Surface and Coatings Technology
Song X
(2013)
Diametrical growth in the forward flow forming process: simulation, validation, and prediction
in The International Journal of Advanced Manufacturing Technology
Jun T
(2012)
Residual stress characterization in 12%-Cr steel friction stir welds by neutron diffraction
in The Journal of Strain Analysis for Engineering Design
Baimpas N
(2013)
Stress evaluation in thin films: Micro-focus synchrotron X-ray diffraction combined with focused ion beam patterning for do evaluation
in Thin Solid Films
Song X
(2012)
Residual stress measurement in thin films at sub-micron scale using Focused Ion Beam milling and imaging
in Thin Solid Films
Description | A host of new approaches developed allows "rich" tomography characterisation of structural and functional materials and components. We are able to map strain, grain orientation, damage etc. in 3D using neutron and synchrotron X-ray beams. |
Exploitation Route | Failure analysis, microstructure analysis, strength analysis, product optimisation New generation of non-destructive materials characterisation tools |
Sectors | Aerospace, Defence and Marine,Agriculture, Food and Drink,Chemicals,Construction,Education,Electronics,Energy,Environment,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology |
URL | http://www.korsunsky.org |
Description | The far-reaching impact of this research concerns 3D imaging in the widest sense: stress-strain, phase, grain orientation, etc. This kind of insight is in demand right across the range of technologies, cultural context, forensics, etc. |
Sector | Aerospace, Defence and Marine,Agriculture, Food and Drink,Chemicals,Construction,Creative Economy,Education,Electronics,Energy,Environment,Healthcare,Government, Democracy and Justice,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology,Transport |
Impact Types | Societal,Economic |
Description | DLS |
Organisation | Diamond Light Source |
Country | United Kingdom |
Sector | Private |
PI Contribution | We provide scientific leadership, ideas for tests, expertise and manpower for running complex experiments. |
Collaborator Contribution | Access to unique world class synchrotron beam lines. |
Impact | Multi-disciplinary - engineering, physics, chemistry; use of X-ray scattering, spectroscopy, imaging |
Description | Specialist Dental Group, Singapore |
Organisation | Specialist Dental Group |
Country | Singapore |
Sector | Hospitals |
PI Contribution | Presentations were made by AMK (PI) at events and meetings in Singapore during which the details of the insights into caries processes obtained in the course of the project were presented. |
Collaborator Contribution | During mutual visits of TKN to UK, and AMK (PI) to Singapore; joint preparation of publications was undertaken, as well as exchange of knowledge and expertise. In particular, advice was received from NTK on caries therapy procedures in Singapore. |
Impact | Publications as found in the literature, preparation of patent applications |
Start Year | 2010 |