A5081550590- Microstructure and Mechanical Properties of Steels
- High Temperature Alloys and Creep
- Microstructure and mechanical properties
- Metallurgy and Material Forming
- Aluminum Alloy Microstructure Properties
- Advanced Materials Characterization Techniques
- Nuclear Materials and Properties
- Additive Manufacturing Materials and Processes
- Hydrogen embrittlement and corrosion behaviors in metals
- Titanium Alloys Microstructure and Properties
- Metallurgical Processes and Thermodynamics
- High-Temperature Coating Behaviors
- X-ray Diffraction in Crystallography
- Non-Destructive Testing Techniques
- Musculoskeletal pain and rehabilitation
- High Entropy Alloys Studies
- Metal and Thin Film Mechanics
- Pain Mechanisms and Treatments
- Shape Memory Alloy Transformations
- Crystallization and Solubility Studies
- Fatigue and fracture mechanics
- Metal Forming Simulation Techniques
- Schizophrenia research and treatment
- Intermetallics and Advanced Alloy Properties
- Advanced X-ray Imaging Techniques
University of Birmingham
1986-2024
University of Cambridge
2010-2024
The Ohio State University
2024
Community College of Denver
2024
University of Oxford
2013-2023
Diamond Light Source
2023
Pacific Northwest National Laboratory
2020
The Edgbaston Hospital
2018
University of Manitoba
2004-2017
Manitoba Health
2016
Manipulative therapy is frequently used in the management of musculoskeletal pain. A reported clinical feature this treatment immediacy with which it appears to initiate improvement pain and function. randomised, double blind, placebo controlled, repeated measures design was employed study initial effects a cervical spine technique group 15 patients lateral epicondylalgia. Pressure threshold, pain-free grip strength, upper limb neurodynamics, function were assessed prior following...
The loss of ductility in the high strength polycrystalline superalloy 720Li is studied air between room temperature and 1000 °C. Tensile influenced profoundly by environment, leading to a pronounced minimum at 750 A relationship tensile oxidation kinetics identified. physical factors responsible for dip are established using energy-dispersive X-ray spectroscopy, nanoscale secondary ion mass spectrometry analysis electron backscatter diffraction patterns. Embrittlement results from internal...
The contribution of a microtwinning mechanism to the creep deformation behaviour single crystal superalloy MD2 is studied. Microtwinning prevalent for uniaxial loading along 〈011〉 at 800°C stress range 625 675 MPa and 825°C MPa. Using quantitative stereology, twin fraction thickness are estimated; this allows accumulated strain be recovered, in turn supporting role mode conferring deformation. Atom probe tomography confirms segregation Cr Co twin/parent interface, consistent with lowering...
The role of boron in promoting ductility at high temperature a prototype nickel-based superalloy designed for industrial gas turbines is studied. Both boron-containing and boron-free variant are tested tension 750 °C, with further in-situ tests carried out using scanning electron microscopy (SEM), to clarify the mechanism improvement. improvement observed be greater lowest investigated strain rate, where grain boundary character plays significant on mechanical properties; no was highest...
The interaction between dislocation pile-ups and grain boundaries gives rise to heterogeneous stress distributions when a structural metal is subjected mechanical loading. Such heterogeneity leads preferential sites for damage nucleation therefore intrinsically linked the strength ductility of polycrystalline metals. To date majority conclusions have been drawn from 2D experimental investigations at sample surface, allowing only incomplete observations. Our purpose here significantly advance...
Objective: To report the prescribing of antipsychotics to youth population Canadian province Manitoba during course a decade. Methods: Use in children and adolescents (aged 18 years or younger) was described using data collected from administrative health databases Health Statistics Canada census between fiscal 1999 2008. Results: The prevalence antipsychotic use this segment increased with introduction second-generation (SGAs) 1.9 per 1000 7.4 male-to-female usage ratio 2.7 as male...
<h3>Background</h3> Despite their favourable toxicology profile, benzodiazepines and the related Z-drugs (zopiclone, zolpidem zaleplon) have been associated with physiological tolerance, dependence addiction. Evidence of harm (e.g., falls, motor vehicle collisions cognitive disturbances) has reported in older populations. The aim this study was to determine relation between users' characteristics use Manitoba over a 16-year period. <h3>Methods</h3> This time-series analysis based on...
Neutron diffraction and synchrotron X-ray imaging have been applied to study, in situ, the mechanical response tensile bending loading of polygranular Gilsocarbon nuclear grade near-isotropic graphite (grade IM1-24). Digital image correlation radiographs digital volume tomographs allow measurement bulk elastic moduli examination heterogeneity deformation microstructure. Both neutron studies show application strain reduces modulus. A permanent set is observed develop with strain. The strains...
The biaxial deformation of a ferritic sheet steel has been examined using high energy in situ X-ray diffraction. A purpose built loading mechanism was constructed to enable across wide range strain ratios. Three nominal conditions were compared: (1) uniaxial loading, ∊TD/∊RD=-ν, (2) where ∊TD/∊RD=0.4, and (3) approximately balanced deformation, with ∊TD/∊RD=1.5. This novel setup allowed the full Debye–Scherrer diffraction rings be acquired during arbitrary selected strain-paths, permitting...
A supersaturated γ phase microstructure is produced in Ni-based superalloys using laser powder bed fusion (L-PBF) – the cooling rate arising from process shown to suppress solid-state precipitation of γ′ phase. The response material a heat treatment therefore requires new understanding at fundamental level, since first population precipitate forms upon heating, contrast homogenisation above solvus. Here, we have interrogated two nickel-based designed for L-PBF technology, both situ and ex...
We report a study of the structure-processing-property relationships in high strength Al93Fe3Cr2Ti2 nano-quasicrystalline alloy and composites containing 10 20 vol% ductilising pure Al fibres. The superimposed contributions several different strengthening mechanisms have been modelled analytically using data obtained from systematic characterisation monolithic bar. An observed yield 544 MPa has substantiated combination solid solution strengthening, work hardening, precipitation hardening...
A methodology to simulate X-ray diffraction lattice strains using crystal plasticity, replicating in-situ synchrotron experimental measurements during the deformation of a low-carbon steel, has been developed. Uniquely, model calculated for full Debye–Scherrer rings, providing in-plane strain distributions determined from plasticity. Thus, direct method comparison between and plasticity results becomes possible. The considered two forms hardening whilst subjecting material dissimilar...