BCAST is striving for international excellence on both fundamental and applied research on solidification of metallic materials. BCAST sees itself as a reliable source of both new knowledge and new solidification technologies for the metallurgical industry. https://bura.brunel.ac.uk/handle/2438/155 2026-09-07T18:55:53Z 2026-09-07T18:55:53Z Sadeghi, Fazlollah Barekar, Nilam Subroto, Tungky Shurkin, Pavel Scamans, Geoff Barbatti, Carla https://bura.brunel.ac.uk/handle/2438/33809 2026-09-03T02:02:23Z 2026-08-24T00:00:00Z

Title: Analyzing the Effect of Fe on the Microstructure and Mechanical Properties of a Fibrous AA6110 Alloy Authors: Sadeghi, Fazlollah; Barekar, Nilam; Subroto, Tungky; Shurkin, Pavel; Scamans, Geoff; Barbatti, Carla Abstract: In this study, the effect of three different levels of iron impurity on the grain structure and texture of a fibrous AA6110 alloy after hot extrusion was investigated. Microstructural examination was carried out to measure the microtexture and the results were correlated with tensile and bending mechanical properties. Results demonstrated that the fragmented intermetallic particles after extrusion stimulate the nucleation of new grains, therefore refining the grain structure. The thickness of peripheral coarse grains was found to decrease by increasing Fe content due to increasing nano-sized dispersoid precipitation density. Increment Fe-rich intermetallics on the one hand leads to entrapment of Si solute reducing free Si needed for precipitation hardening shown via thermodynamic calculations. The bending formability was found to correlate with the grain structure of the PCG thickness. The results are compared with Part 1 of this research on the study of Fe content in recrystallized alloys. This work helps to a better understanding of recyclability in Al extrusion alloys. Graphical Abstract This shows the extruded AA6110 alloy having fibrous grain structures. The deep microstructural observation from macro to nanosized particles show the grain structure, particle stimulated nucleation, and dispersoid precipitation. Additional Fe in the composition of alloys result in increment of Fe-based intermetallic phase which break down and stretch during extrusion while grain structure evolves by dynamic recrystallization. Description: Data Availability: Data is available upon a reasonable request from the corresponding author.

2026-08-24T00:00:00Z Vivekanandam, Viththagan Joshi, Shubham Sanjay Bagherpour, Ebad Fan, Zhongyun https://bura.brunel.ac.uk/handle/2438/33760 2026-08-26T02:02:00Z 2026-08-09T00:00:00Z

Title: Electrical Resistivity as a Non-Destructive Technique for Fatigue Damage Detection in Aluminium Alloy 6082 Authors: Vivekanandam, Viththagan; Joshi, Shubham Sanjay; Bagherpour, Ebad; Fan, Zhongyun Abstract: Metals are widely used in various types of structural applications such as the automotive, aerospace and construction industries. However, their service life is limited due to the various loads they experience during operation. Specifically, cyclic loading can lead to the early fatigue failure of these structures. Therefore, early detection of fatigue deformation is essential to prevent catastrophic failures. In this study, an automated electrical resistance data acquisition system was developed using LabVIEW to obtain measurements from a Keithley 6221 current source for fatigue damage detection. The results showed an increase in electrical resistivity after the application of cyclic loading. It was observed that electrical resistivity increased after each set of loading cycles, with an average increase of 7.38%, a stress level of 260 MPa (high-cycle fatigue), and a 6.5% increase after the application of 25,000 cycles at 165 MPa (low-cycle fatigue). Scanning Transmission Electron Microscopy (S/TEM) was used for microstructural investigation as a proof of concept for the high-cycle fatigue sample interrupted after 25,000 cycles to analyse the modification in dislocation structures as well as a qualitative increment in the dislocation density with respect to the initial microstructural state of the as-machined sample. Such a modification in dislocation structures as well as an increment in dislocation density corroborates the findings proposed by electrical resistivity measurement. The results demonstrated that electrical resistivity measurement provides a promising non-destructive approach for the early detection of fatigue damage in metallic materials. Description: Data Availability Statement: Data will be made available on request.; At head of title: Technical Note.

2026-08-09T00:00:00Z Jayakrishnan, Ampattu R Estrócio, Nuno Silva, Inês Negrea, Raluca Istrate, Marian C Sekhar, Koppole C Marques, Luís MacManus‐Driscoll, Judith L Fina, Ignasi Sánchez, Florencio Silva, José PB https://bura.brunel.ac.uk/handle/2438/33743 2026-08-24T02:01:43Z 2026-04-01T00:00:00Z

Title: Record Energy Storage Performance Metrics in Ferroelectric Hafnia‐Based Films through Heterostructure Design Authors: Jayakrishnan, Ampattu R; Estrócio, Nuno; Silva, Inês; Negrea, Raluca; Istrate, Marian C; Sekhar, Koppole C; Marques, Luís; MacManus‐Driscoll, Judith L; Fina, Ignasi; Sánchez, Florencio; Silva, José PB Abstract: Capacitive energy storage is part of a promising energy harvesting and storage solution to power Internet of Things (IoT) sensors, overcoming the critical limitations of conventional supercapacitors and micro-batteries. Moreover, achieving high recoverable energy storage density (ESD) and high efficiency (η) simultaneously is a key goal in energy storage, often requiring hybrid systems (e.g., combining batteries and supercapacitors) to balance the trade-offs. Here, we demonstrate a ultra-thin film capacitor with unprecedented high ESD that can be efficiently released at low operating voltage. This is achieved by using a novel heterostructure design combining ferroelectric La-doped HfO₂ and a ferroelectric perovskite that is a relaxor induced by polar nanoregions, which enables a low hysteresis loss in the capacitor, thereby leading to an improved η. Additionally, the relaxor ferroelectric layer thickness was optimized to give an optimum voltage drop to allow high maximum polarization and low remnant polarization, the former to allow an ESD of over 50 J/cm³, and the latter to allow ŋ to be maximized at ∼95%. Therefore, our fluorite/perovskite heterostructure design and unique materials strategy have together provided a novel way to achieve unprecedented dielectric energy storage properties, proving a new route to electrostatic energy storage for autonomous IoT sensors. Description: Data Availability Statement: The data that support the findings of this study are available from the corresponding author upon reasonable request.

2026-04-01T00:00:00Z Don Merenchige, Upendra Arjeewani Weerathunga Wang, Bin Ji, Shouxun https://bura.brunel.ac.uk/handle/2438/33730 2026-08-20T02:01:27Z 2026-06-24T00:00:00Z

Title: Correction: From corporate greenhouse gas inventories to design-relevant LCAs: an integrated framework for industrial decarbonization Authors: Don Merenchige, Upendra Arjeewani Weerathunga; Wang, Bin; Ji, Shouxun Abstract: During typesetting of this article in place of Fig. 3, Fig. 4 was duplicated. The missing Fig. 3 is shown below: Example of data collection granularity across emission sources, illustrating hierarchical categorization from emission source to client level. The framework enables detailed activity data collection, for example, raw materials are traced from material type and grade to product type, accurate emission allocation across both organizational and product-level inventories The original article has been corrected. Description: Data availability: The data supporting the findings of this case study were provided by the participating organization under confidentiality agreements. As such, the data are not publicly available in accordance with the organization’s data disclosure policy.; The corrected manuscript is archived below (59 pp.) under an embargo period of 12 months.

2026-06-24T00:00:00Z