Search Results - "Connolley, T."
-
1
Influence of Fe-rich intermetallics on solidification defects in Al–Si–Cu alloys
Published in Acta materialia (15-04-2014)“…To better understand the influence of Fe-rich intermetallics on solidification defect formation, fast in situ synchrotron X-ray tomographic microscopy…”
Get full text
Journal Article -
2
The spatial and temporal distribution of dendrite fragmentation in solidifying Al-Cu alloys under different conditions
Published in Acta materialia (01-12-2016)“…The directional columnar solidification of Al-Cu alloy dendrites was studied in-situ by synchrotron X-ray radiography to investigate the spatial and temporal…”
Get full text
Journal Article -
3
In situ synchrotron tomographic quantification of granular and intragranular deformation during semi-solid compression of an equiaxed dendritic Al–Cu alloy
Published in Acta materialia (01-09-2014)“…Semi-solid deformation mechanisms are important in a range of manufacturing and natural phenomena, which range from squeeze casting to magma flows. Using fast…”
Get full text
Journal Article -
4
A synchrotron X-ray radiography study of dendrite fragmentation induced by a pulsed electromagnetic field in an Al–15Cu alloy
Published in Acta materialia (15-05-2014)“…An in situ technique for studying the effect of a pulsed electromagnetic field on dendrite fragmentation behavior based on synchrotron X-ray imaging has been…”
Get full text
Journal Article -
5
Revealing the micromechanisms behind semi-solid metal deformation with time-resolved X-ray tomography
Published in Nature communications (18-07-2014)“…The behaviour of granular solid–liquid mixtures is key when deforming a wide range of materials from cornstarch slurries to soils, rock and magma flows. Here…”
Get full text
Journal Article -
6
Time-resolved synchrotron tomographic quantification of deformation during indentation of an equiaxed semi-solid granular alloy
Published in Acta materialia (15-02-2016)“…Indentation is a well-established technique for measuring mechanical properties, such as hardness and creep, in solid materials at a continuum level. In this…”
Get full text
Journal Article -
7
Transgranular liquation cracking of grains in the semi-solid state
Published in Nature communications (10-09-2015)“…Grain refinement via semi-solid deformation is desired to obtain superior mechanical properties of cast components. Using quantitative in situ synchrotron…”
Get full text
Journal Article -
8
Quantifying fatigue overload retardation mechanisms by energy dispersive X-ray diffraction
Published in Journal of the mechanics and physics of solids (01-03-2019)“…The fatigue crack retardation mechanisms operating after an overload event are investigated for a bainitic steel using high spatial resolution energy…”
Get full text
Journal Article -
9
Hoop Strain Measurement During a SiC/SiC Ceramic Composite Tube Burst Test by Digital Volume Correlation of X-Ray Computed Tomographs
Published in Experimental mechanics (01-02-2023)“…Background Silicon carbide-fibre/silicon carbide matrix (SiC/SiC) composites are candidate materials for accident tolerant fuel cladding in light water and…”
Get full text
Journal Article -
10
Time-resolved synchrotron diffractometry of phase transformations in high strength nickel-based superalloys
Published in Acta materialia (01-08-2015)“…Phase transformations in prototype high strength polycrystalline nickel-based superalloys of varying Ti/Nb ratio are studied using time-resolved, high…”
Get full text
Journal Article -
11
Unifying the effects of in and out-of-plane constraint on the fracture of ductile materials
Published in Journal of the mechanics and physics of solids (01-08-2020)“…Effects of plastic constraint on the fracture of materials have been studied extensively. Often in such studies, the plastic constraint is divided into…”
Get full text
Journal Article -
12
A synchrotron X-ray diffraction study of in situ biaxial deformation
Published in Acta materialia (15-05-2015)“…The biaxial deformation of a ferritic sheet steel has been examined using high energy in situ X-ray diffraction. A purpose built biaxial loading mechanism was…”
Get full text
Journal Article -
13
Measurement of strain evolution in overloaded roller bearings using time-of-flight neutron diffraction
Published in Materials & design (01-05-2020)“…Neutron diffraction is an established method for non-destructively characterising residual stress or observing in situ strain during external stimuli. Neutron…”
Get full text
Journal Article -
14
In situ X-ray observation of semi-solid deformation and failure in Al–Cu alloys
Published in Acta materialia (01-02-2011)“…Semi-solid deformation has been directly observed in an Al–12 wt.% Cu alloy through the combination of real-time synchrotron X-ray radiography and a bespoke…”
Get full text
Journal Article -
15
Time-resolved synchrotron tomographic quantification of deformation-induced flow in a semi-solid equiaxed dendritic Al–Cu alloy
Published in Scripta materialia (01-07-2015)“…The rheology of semi-solid alloys has been studied by a novel in situ tomographic technique. Via extruding an equiaxed Al–15wt.%Cu alloy, the inhomogeneous…”
Get full text
Journal Article -
16
Region‐of‐interest tomography using filtered backprojection: assessing the practical limits
Published in Journal of microscopy (Oxford) (01-01-2011)“…Summary There are many cases where it is desirable to reconstruct at high resolution a small volume from a larger sample. Here we describe the outcomes of a…”
Get full text
Journal Article -
17
Characterisation of short fatigue cracks in titanium alloy IMI 834 using X-ray microtomography
Published in Acta materialia (15-10-2015)“…[Display omitted] A first attempt at the three-dimensional evaluation of naturally initiated surface connected and internal fatigue cracks is presented…”
Get full text
Journal Article -
18
Measurement of strain evolution in overloaded roller bearings using energy dispersive X-ray diffraction
Published in Tribology international (01-12-2019)“…There are several mechanisms contributing towards detrimental damage in wind turbine gearbox bearings, with sudden overload events believed to reduce their…”
Get full text
Journal Article -
19
Mapping of axial plastic zone for roller bearing overloads using neutron transmission imaging
Published in Materials & design (15-10-2018)“…Premature failure of wind turbine gearbox bearings is an ongoing concern for industry, with sudden overload events potentially contributing towards raceway…”
Get full text
Journal Article -
20
Short crack initiation and growth at 600 °C in notched specimens of Inconel718
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (01-01-2003)“…The natural initiation and growth of short cracks in Inconel®718 U-notch specimens has been studied at 600 °C in air. U notches were introduced through…”
Get full text
Journal Article