https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Multiscale mechanical performance and corrosion behaviour of plasma sprayed AlCoCrFeNi high-entropy alloy coatings https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38529 Wed 27 Oct 2021 16:29:52 AEDT ]]> The Effect of low temperature range heat treatment on the residual stress of cold gas dynamic sprayed Inconel 718 coatings via neutron Diffraction https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39539 Wed 27 Jul 2022 14:21:50 AEST ]]> Mapping of residual stresses in as-built Inconel 718 fabricated by laser powder bed fusion: a neutron diffraction study of build orientation influence on residual stresses https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:37446 Wed 25 Nov 2020 17:37:21 AEDT ]]> Residual stress distributions in cold-sprayed copper 3D-printed parts https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:47187 Wed 14 Dec 2022 16:02:43 AEDT ]]> Hydrogen-induced delayed fracture of a 1180 MPa martensitic advanced high-strength steel under U-bend loading https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39236 Wed 10 Aug 2022 08:49:25 AEST ]]> A neutron tomographic analysis of plated silver coins from ancient Greece official or illegal? https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42858 Wed 07 Sep 2022 14:50:25 AEST ]]> Deformation Mechanisms in Orogenic Gold Systems During Aseismic Periods: Microstructural Evidence from the Central Victorian Gold Deposits, Southeast Australia https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50156 Wed 05 Jul 2023 15:21:15 AEST ]]> Mechanical performance and residual stress of WC-Co coatings manufactured by Kinetic Metallization™ https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50140 Wed 05 Jul 2023 13:01:33 AEST ]]> HRTex: a high-resolution texture data processing tool for monochromatic neutron diffraction based on the pixel projection method https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:52176 Wed 04 Oct 2023 11:04:42 AEDT ]]> On the surface and system performance of thermally sprayed carbide coatings produced under controlled residual stresses https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:41397 Wed 03 Aug 2022 09:04:13 AEST ]]> Neutron diffraction characterizations of NbC-Ni cemented carbides thermal residual stresses https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:53310 Tue 21 Nov 2023 12:02:01 AEDT ]]> Influence of WC Particle Size on the Mechanical Properties and Residual Stress of HVOF Thermally Sprayed WC–10Co–4Cr Coatings https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:52721 Tue 14 Nov 2023 13:03:33 AEDT ]]> A study of the influence of novel scan strategies on residual stress and microstructure of L-shaped LPBF IN718 samples https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48289 Tue 14 Mar 2023 11:40:26 AEDT ]]> Deformation of polycrystalline D2O ice: its sensitivity to temperature and strain-rate as an analogue for terrestrial ice https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39109 2O) was deformed over a range of high-temperatures (−20 to −1 °C; 0.92–0.99Tm) during in situ neutron diffraction texture and grain-size analysis. This allowed for a continuous monitoring of the evolution of rheology, texture, grain-numbers and the type of microstructures, which are compared to those encountered in basal sections of ice-sheets. We quantify the textural evolution with >i>J-index changes as a function of strain-rate and temperature. Three sets of unconfined samples were deformed at displacement rates of 1 x 10-5s−1 (fast) 2.5 x 10-6 s−1 (medium) and 6 x 10-7 s−1 (slow). Dislocation creep is proposed as the main deformation mechanism with sub-grain rotation more significant at lower temperatures (0.92Tm) and/or higher strain-rates. At higher-temperatures (0.99Tm) and/or lower strain-rates dynamic recrystallization is dominated by grain boundary migration, typified by grains with highly curved or lobate grain boundaries, and leading to rheological softening of the ice. From initially randomly oriented [c]-axes, a texture comprising 30–35° cones parallel to the compression axis develops, which is comparable to textures observed in the upper levels of polar ice-sheets. There is also a strain-rate dependence on the development of normalized [c]-axis intensities, which is in competition with strain magnitude and temperature. At lower temperatures (≤10 °C), small increments of strain or slower strain-rates, the cone-angle and textural strength decrease with a dominant textural component parallel to the compression axis. This may be an explanation for the vertical [c]-axis concentrations observed in polar ice cores.]]> Tue 10 May 2022 14:19:34 AEST ]]> Interdependence of slurry erosion wear performance and residual stress in WC-12wt%Co and WC-10wt%VC-12wt%Co HVOF coatings https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40143 Tue 05 Jul 2022 15:49:50 AEST ]]> A simplified layer-by-layer model for prediction of residual stress distribution in additively manufactured parts https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38091 Tue 03 Aug 2021 18:28:34 AEST ]]> Anisotropic behaviours of LPBF Hastelloy X under slow strain rate tensile testing at elevated temperature https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50663 Tue 01 Aug 2023 13:28:26 AEST ]]> Observation of Residual Stress and Fatigue Behavior of Structurally Integrated Thermally Sprayed Nickel Coatings https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39948 Thu 30 Jun 2022 14:29:32 AEST ]]> Residual stresses in cold spray additively manufactured hollow titanium cylinders https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:37727 Thu 25 Mar 2021 14:25:52 AEDT ]]> Mapping of three-dimensional residual stresses by neutron diffraction in nickel-based superalloy discs prepared under different quenching conditions https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:52646 Thu 19 Oct 2023 15:18:03 AEDT ]]> Anisotropic deformation and fracture mechanisms of an additively manufactured ni-based superalloy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38699 −5 and 10−6s−1) tensile testing (SSRT) at 700 °C. LPBF HX typically exhibits an elongated grain structure along the building direction (BD) and the texture analysis from the combination of neutron diffraction and EBSD discloses a major texture component <011> and a minor texture component <001> along BD, and a texture component <001> in the other two sample directions perpendicular to BD. Two types of tests have been performed, the horizontal tests where the loading direction (LD) is applied perpendicular to BD, and the vertical tests where LD is applied parallel to BD. The vertical tests exhibit lower strength but better ductility, which is explained by the texture effect and the elongated grain structure. A comparison of the mechanical behavior to the wrought HX shows that LPBF HX has better yield strength due to the high dislocation density as proved by TEM images. Creep voids are observed at grain boundaries in SSRT for both directions and are responsible for the poor ductility of the horizontal tests. The vertical ductility in SSRT maintains the same level as the reference tensile test at the strain rate of 10−3s−1, due to the extra deformation capacity contributed by the discovered deformation twinning and lattice rotation. The deformation twinning, which is only observed in the vertical tests and has not been found in the conventionally manufactured HX, is beneficial to maintain the ductility but does not strengthen the material.]]> Thu 13 Jan 2022 15:37:12 AEDT ]]> Forming-induced residual stress and material properties of roll-formed high-strength steels https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:41703 Thu 11 Aug 2022 15:03:33 AEST ]]> Effect of cryogenic temperature equal channel angular pressing on microstructure, bulk texture and tensile properties of AA1050 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45691 Thu 03 Nov 2022 09:35:55 AEDT ]]> Stress distribution in iron powder during die compaction https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:20795 Sat 24 Mar 2018 08:06:00 AEDT ]]> Neutron diffraction techniques in granular mechanics https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30464 Sat 24 Mar 2018 07:24:19 AEDT ]]> Samurai's swords, a non-invasive investigation by neutron techniques https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42398 Mon 22 Aug 2022 16:35:19 AEST ]]> Insights into granular mechanics through neutron scattering https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48086
1. The use crystallographic texture measurement techniques to uncover the evolution of fabric within clay soils as a function of deformation, and,

2. The use of neutron diffraction strain measurement techniques to examine the behaviour of force chain networks during the compaction of granular systems.

In both cases, neutrons are able to provide quantitative measurements that are difficult (if not impossible) to obtain any other way. In the first case, this refers to the direct measurement of the average fabric tensor over a representative sample; in the second, neutrons are able to determine the three-dimensional stress state within individual particles and hence allow the calculation of the actual force network existing within an entire assembly of particles.]]> Fri 24 Feb 2023 15:17:17 AEDT ]]> Effect of heat treatment temperature on the microstructural evolution of CM247LC superalloy by laser powder bed fusion https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:49131 Fri 05 May 2023 12:00:21 AEST ]]>