A5052385259- Welding Techniques and Residual Stresses
- Advanced Welding Techniques Analysis
- Aluminum Alloy Microstructure Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Aluminum Alloys Composites Properties
- Fatigue and fracture mechanics
- Non-Destructive Testing Techniques
- Microstructure and Mechanical Properties of Steels
- Metallurgy and Material Forming
- Restraint-Related Deaths
- Intermetallics and Advanced Alloy Properties
- High Temperature Alloys and Creep
- Nuclear Materials and Properties
- Fusion materials and technologies
- High Entropy Alloys Studies
- Criminal Justice and Corrections Analysis
- Metal and Thin Film Mechanics
- Advanced machining processes and optimization
- Corrosion Behavior and Inhibition
- MXene and MAX Phase Materials
- Additive Manufacturing Materials and Processes
- Quasicrystal Structures and Properties
- Microstructure and mechanical properties
- Adhesion, Friction, and Surface Interactions
- Torture, Ethics, and Law
University of Bristol
2013-2025
Leeds Community Healthcare NHS Trust
2015-2024
NHS England
2023
West Yorkshire Police
2015-2017
SIT Graduate Institute
2015
Australian Catholic University
2012
European Synchrotron Radiation Facility
2006-2012
Institute of Solid Mechanics
2003-2010
University College London
2009
Birkbeck, University of London
2009
This paper investigates the potential of mechanical tensioning (MT) to reduce magnitude residual stresses in welds and eliminate buckling distortion. Both friction stir (FSW) arc have been produced from aluminium alloy AA2024, with different levels tensile stress applied along weld line either during or after welding. The resulting characterised terms out plane distortion, microstructure. Buckling distortion was eliminated by stretching plates between 35 70% yield material For each set...
Hot-compression tests were conducted in a high-energy synchrotron x-ray beam to study situ and real time microstructural changes the bulk of β-solidifying titanium aluminide alloy. The occupancy spottiness diffraction rings have been evaluated order access grain growth refinement, orientation relationships, subgrain formation, dynamic recovery, recrystallization, as well phase transformations. This method has applied an alloy consisting two coexisting phases at high temperature it was found...
Some newer 7xxx aluminium aerospace alloys seem to be more sensitive hydrogen environmentally assisted cracking (HEAC) in moist air than older alloys. This investigation compares the relative propensity of new (AA7449) and old (AA7075) during static loading warm, (80∘C, 85% humidity). The surface stress was held below yield via 4-point bend tests performed using small rigs that permitted ongoing monitoring for scale cracking. Both exhibited HEAC but large cracks formed much quickly AA7449 at...
Abstract Background Spent AGR (advanced gas-cooled reactor) fuel cladding may suffer from stress corrosion cracking (SCC) during the interim storage period in cooling ponds and compromise structural integrity of storage. Objective To better understand effect SCC, a new small punch test (SPT) setup was developed this study that can use volume sample to limit safety concerns about irradiated materials. Methods The SPT accelerated SCC surrogate material 304 stainless steel by introducing...
The joining of dissimilar materials is attaining increasing importance as there a drive to utilise hybrid structures and reduce the weight or cost products. present work therefore studied linear friction welding commercially pure grades aluminium copper (AA 1050 C101) for potential power transmission applications. Results showed that welds with very good mechanical electrical properties can be produced. weld microstructure was analysed using optical microscopy, backscattered scanning...
Continuous hydrothermal flow synthesis (CHFS) offers a controllable route to the production of nanocrystalline materials. We describe application tomographic X-ray methods image, for first time, crystallization at interior an in operando CHFS reactor. In experiment, steady-state formation nanoparticulate CeO2 was followed: proceeds by rapid hydrolysis cerium ammonium nitrate and coprecipitation near/super-critical water environment (T = 340−450 °C, P 24 MPa). The results identify location...
Abstract Recent developments of synchrotron X‐ray sources and dedicated high‐energy beamlines are now enabling strain measurements from large volumes industrially relevant metallic materials. Such capability is allowing the validation novel alternative nondestructive experimental methods measurement or computational models complex deformation processes. This study describes first dynamic contact a ball bearing using stroboscopic energy dispersive diffraction. The experiment probed in outer...
Weld residual stress (RS) measurements are often undertaken on test-pieces which have been cut out from large components, yet it remains unclear to what extent the RSs in representative of those present original component. Similarly weld mechanical performance tests frequently cross-weld without a proper understanding level or influence retained RS. We systematic study relaxation longitudinal RS thin-plate butt welds produced using different materials and welding methods (FSW, laser-MIG,...
Victims of violence often seek assistance from emergency departments, so nurses are ideally placed to identify them, and other 'forensic' patients, protect the evidence that could support any ensuing legal process. Emergency who trained identify, collect preserve forensic can identification, elimination prosecution suspects. This article gives an overview evidence, explains how samples effectively.