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All Outputs (20)

Tailoring the in-situ formation of intermetallic phases in the self-lubricating Al-WS2 composite for enhanced tribological performance with wear track evolution analysis (2023)
Journal Article
Li, P., Aboulkhair, N. T., Wu, J., Leng, K. L., Yang, D., Clare, A. T., …Xu, F. (2023). Tailoring the in-situ formation of intermetallic phases in the self-lubricating Al-WS2 composite for enhanced tribological performance with wear track evolution analysis. Journal of Materials Research and Technology, 27, 4891-4907

Self-lubricating aluminium matrix composites with enhanced tribological properties are sought for weight critical applications. In previous studies, the Al composites incorporating the solid lubricant WS2 have been shown to reduce both the coefficien... Read More about Tailoring the in-situ formation of intermetallic phases in the self-lubricating Al-WS2 composite for enhanced tribological performance with wear track evolution analysis.

From impact to solidification in drop-on-demand metal additive manufacturing using MetalJet (2022)
Journal Article
Gilani, N., Aboulkhair, N. T., Simonelli, M., East, M., Ashcroft, I. A., & Hague, R. J. (2022). From impact to solidification in drop-on-demand metal additive manufacturing using MetalJet. Additive Manufacturing, 55, Article 102827. https://doi.org/10.1016/j.addma.2022.102827

Drop-on-demand metal jetting is a promising additive manufacturing (AM) technology that is gaining interest due to its capability to directly print complex single and multi-material components at high resolutions. It also has key advantages over othe... Read More about From impact to solidification in drop-on-demand metal additive manufacturing using MetalJet.

Cracking behaviour of high-strength AA2024 aluminium alloy produced by Laser Powder Bed Fusion (2022)
Journal Article
Del Guercio, G., McCartney, D. G., Aboulkhair, N. T., Robertson, S., Maclachlan, R., Tuck, C., & Simonelli, M. (2022). Cracking behaviour of high-strength AA2024 aluminium alloy produced by Laser Powder Bed Fusion. Additive Manufacturing, 54, Article 102776. https://doi.org/10.1016/j.addma.2022.102776

Most wrought aluminium alloys of the 2000 series are difficult to manufacture by laser powder bed fusion (L-PBF) due to the formation of cracks during building. To date, the effects of processing regimes on crack formation are still not well understo... Read More about Cracking behaviour of high-strength AA2024 aluminium alloy produced by Laser Powder Bed Fusion.

Insights into drop-on-demand metal additive manufacturing through an integrated experimental and computational study (2021)
Journal Article
Gilani, N., Aboulkhair, N. T., Simonelli, M., East, M., Ashcroft, I., & Hague, R. J. (2021). Insights into drop-on-demand metal additive manufacturing through an integrated experimental and computational study. Additive Manufacturing, 48(Part B), Article 102402. https://doi.org/10.1016/j.addma.2021.102402

Drop-on-demand metal jetting is a recent additive manufacturing technology opening new opportunities for the fabrication of complex single and multi-metal components. MetalJet, the Océ developed technique used in this study, has the capacity to produ... Read More about Insights into drop-on-demand metal additive manufacturing through an integrated experimental and computational study.

Generation of graded porous structures by control of process parameters in the selective laser melting of a fixed ratio salt-metal feedstock (2020)
Journal Article
Aboulkhair, N. T., Zhao, G., Hague, R. J., Kennedy, A. R., Ashcroft, I. A., & Clare, A. T. (2020). Generation of graded porous structures by control of process parameters in the selective laser melting of a fixed ratio salt-metal feedstock. Journal of Manufacturing Processes, 55, 249-253. https://doi.org/10.1016/j.jmapro.2020.04.039

The demonstration of salt dissolution incorporated within laser powder-bed fusion fabrication processes has allowed the creation of complex porous structures without the need for sophisticated design algorithms. This serves to simplify the process, f... Read More about Generation of graded porous structures by control of process parameters in the selective laser melting of a fixed ratio salt-metal feedstock.

The Effects of Feature Sizes in Selectively Laser Melted Ti-6Al-4V Parts on the Validity of Optimised Process Parameters (2019)
Journal Article
Phutela, C., Aboulkhair, N. T., Tuck, C. J., & Ashcroft, I. (2019). The Effects of Feature Sizes in Selectively Laser Melted Ti-6Al-4V Parts on the Validity of Optimised Process Parameters. Materials, 13(1), https://doi.org/10.3390/ma13010117

Ti-6Al-4V is a popular alloy due to its high strength-to-weight ratio and excellent corrosion resistance. Many applications of additively manufactured Ti-6Al-4V using selective laser melting (SLM) have reached technology readiness. However, issues li... Read More about The Effects of Feature Sizes in Selectively Laser Melted Ti-6Al-4V Parts on the Validity of Optimised Process Parameters.

Towards digital metal additive manufacturing via high-temperature drop-on-demand jetting (2019)
Journal Article
Simonelli, M., Aboulkhair, N., Rasa, M., East, M., Tuck, C., Wildman, R., …Hague, R. (2019). Towards digital metal additive manufacturing via high-temperature drop-on-demand jetting. Additive Manufacturing, 30, Article 100930. https://doi.org/10.1016/j.addma.2019.100930

Drop-on-demand jetting of metals offers a fully digital manufacturing approach to surpass the limitations of the current generation powder-based additive manufacturing technologies. However, research on this topic has been restricted mainly to near-n... Read More about Towards digital metal additive manufacturing via high-temperature drop-on-demand jetting.

Evolution of carbon nanotubes and their metallurgical reactions in Al-based composites in response to laser irradiation during selective laser melting (2019)
Journal Article
Aboulkhair, N. T., Simonelli, M., Salama, E., Rance, G., Neate, N. C., Tuck, C. J., …Hague, R. J. (2019). Evolution of carbon nanotubes and their metallurgical reactions in Al-based composites in response to laser irradiation during selective laser melting. Materials Science and Engineering: A, 765, Article 138307. https://doi.org/10.1016/j.msea.2019.138307

Aluminium-based composites reinforced with carbon nanotubes are widely sought for their outstanding metallurgical and structural properties that largely depend on the manufacturing route. In this work, the process-structure-property relationship for... Read More about Evolution of carbon nanotubes and their metallurgical reactions in Al-based composites in response to laser irradiation during selective laser melting.

3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting (2019)
Journal Article
Aboulkhair, N. T., Simonelli, M., Parry, L., Ashcroft, I., Tuck, C., & Hague, R. (2019). 3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting. Progress in Materials Science, 106, https://doi.org/10.1016/j.pmatsci.2019.100578

© 2019 The Authors Metal Additive Manufacturing (AM) processes, such as selective laser melting (SLM), enable the fabrication of arbitrary 3D-structures with unprecedented degrees of freedom. Research is rapidly progressing in this field, with promis... Read More about 3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting.

A comparison of Ti-6Al-4V in-situ alloying in Selective Laser Melting using simply-mixed and satellited powder blend feedstocks (2018)
Journal Article
Simonelli, M., Aboulkhair, N. T., Cohen, P., Murray, J. W., Clare, A. T., Tuck, C., & Hague, R. J. (in press). A comparison of Ti-6Al-4V in-situ alloying in Selective Laser Melting using simply-mixed and satellited powder blend feedstocks. Materials Characterization, https://doi.org/10.1016/j.matchar.2018.05.039

In-situ alloying within laser powder-bed fusion, specifically Selective Laser Melting (SLM), has been investigated for the formulation of novel alloys from elemental powders to extend the benefits offered by these technologies. Inadequate preparation... Read More about A comparison of Ti-6Al-4V in-situ alloying in Selective Laser Melting using simply-mixed and satellited powder blend feedstocks.

Compressive failure modes and energy absorption in additively manufactured double gyroid lattices (2018)
Journal Article
Maskery, I., Aboulkhair, N. T., Aremu, A., Tuck, C., & Ashcroft, I. (in press). Compressive failure modes and energy absorption in additively manufactured double gyroid lattices. Additive Manufacturing, 16, https://doi.org/10.1016/j.addma.2017.04.003

Lattice structures are excellent candidates for lightweight, energy absorbing applications such as personal protective equipment. In this paper we explore several important aspects of lattice design and production by metal additive manufacturing, inc... Read More about Compressive failure modes and energy absorption in additively manufactured double gyroid lattices.

Selective laser melting of aluminium alloys (2017)
Journal Article
Aboulkhair, N. T., Everitt, N. M., Maskery, I., Ashcroft, I., & Tuck, C. (2017). Selective laser melting of aluminium alloys. MRS Bulletin, 42(4), 311-319. https://doi.org/10.1557/mrs.2017.63

Metal additive manufacturing (AM) processes, such as selective laser melting, enable powdered metals to be formed into arbitrary 3D shapes. For aluminium alloys, which are desirable in many high-value applications for their low density and good mecha... Read More about Selective laser melting of aluminium alloys.

Fractal scan strategies for selective laser melting of ‘unweldable’ nickel superalloys (2017)
Journal Article
Catchpole-Smith, S., Aboulkhair, N., Parry, L., Tuck, C., Ashcroft, I., & Clare, A. (in press). Fractal scan strategies for selective laser melting of ‘unweldable’ nickel superalloys. Additive Manufacturing, https://doi.org/10.1016/j.addma.2017.02.002

The high thermal gradients experienced during manufacture via selective laser melting commonly result in cracking of high γ/γ′ Nickel based superalloys. Such defects cannot be tolerated in applications where component integrity is of paramount import... Read More about Fractal scan strategies for selective laser melting of ‘unweldable’ nickel superalloys.

A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting (2016)
Journal Article
Maskery, I., Aboulkhair, N., Aremu, A., Tuck, C., Ashcroft, I., Wildman, R., & Hague, R. (2016). A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting. Materials Science and Engineering: A, 670, 264-274. https://doi.org/10.1016/j.msea.2016.06.013

Metal components with applications across a range of industrial sectors can be manufactured by selective laser melting (SLM). A particular strength of SLM is its ability to manufacture components incorporating periodic lattice structures not realisab... Read More about A mechanical property evaluation of graded density Al-Si10-Mg lattice structures manufactured by selective laser melting.

Improving the fatigue behaviour of a selectively laser melted aluminium alloy: Influence of heat treatment and surface quality (2016)
Journal Article
Aboulkhair, N. T., Maskery, I., Tuck, C., Ashcroft, I., & Everitt, N. M. (2016). Improving the fatigue behaviour of a selectively laser melted aluminium alloy: Influence of heat treatment and surface quality. Materials and Design, 104, 174-182. https://doi.org/10.1016/j.matdes.2016.05.041

Selective laser melting (SLM) is being widely utilised to fabricate intricate structures used in various industries. Widening the range of applications that can benefit from such promising technology requires validating SLM parts in load bearing appl... Read More about Improving the fatigue behaviour of a selectively laser melted aluminium alloy: Influence of heat treatment and surface quality.

The microstructure and mechanical properties of selectively laser melted AlSi10Mg: The effect of a conventional T6-like heat treatment (2016)
Journal Article
Aboulkhair, N. T., Maskery, I., Tuck, C., Ashcroft, I., & Everitt, N. M. (2016). The microstructure and mechanical properties of selectively laser melted AlSi10Mg: The effect of a conventional T6-like heat treatment. Materials Science and Engineering: A, 667, 139-146. https://doi.org/10.1016/j.msea.2016.04.092

Selective laser melting (SLM) of aluminium is of research interest because of its potential benefits to high value manufacturing applications in the aerospace and automotive industries. In order to demonstrate the credibility of SLM Al parts, their m... Read More about The microstructure and mechanical properties of selectively laser melted AlSi10Mg: The effect of a conventional T6-like heat treatment.

On the formation of AlSi10Mg single tracks and layers in selective laser melting: Microstructure and nano-mechanical properties (2015)
Journal Article
Aboulkhair, N. T., Maskery, I., Tuck, C., Ashcroft, I., & Everitt, N. M. (2016). On the formation of AlSi10Mg single tracks and layers in selective laser melting: Microstructure and nano-mechanical properties. Journal of Materials Processing Technology, 230, 88-98. https://doi.org/10.1016/j.jmatprotec.2015.11.016

Selective laser melting (SLM) is a relatively new manufacturing technique that can be used to process a range of materials. Aluminum alloys are potential candidates for SLM but are more difficult to process than the titanium alloys more commonly used... Read More about On the formation of AlSi10Mg single tracks and layers in selective laser melting: Microstructure and nano-mechanical properties.

On the Precipitation Hardening of Selective Laser Melted AlSi10Mg (2015)
Journal Article
Tuck, C., Aboulkhair, N. T., Tuck, C., Ashcroft, I., Maskery, I., & Everitt, N. M. (2015). On the Precipitation Hardening of Selective Laser Melted AlSi10Mg. Metallurgical and Materials Transactions A, 46(8), 3337-3341. https://doi.org/10.1007/s11661-015-2980-7

Precipitation hardening of selective laser melted AlSi10Mg was investigated in terms of solution heat treatment and aging duration. The influence on the microstructure and hardness was established, as was the effect on the size and density of Si part... Read More about On the Precipitation Hardening of Selective Laser Melted AlSi10Mg.

Nano-hardness and microstructure of selective laser melted AlSi10Mg scan tracks (2015)
Conference Proceeding
Aboulkhair, N. T., Tuck, C., Maskery, I., Ashcroft, I., & Everitt, N. (2015). Nano-hardness and microstructure of selective laser melted AlSi10Mg scan tracks. In Industrial Laser Applications Symposium (ILAS 2015). https://doi.org/10.1117/12.2190015

Selective laser melting (SLM) of aluminium alloys faces more challenges than other ongoing alloys such as stainless steels and titanium alloys because of the material’s properties. It is important to study single scan tracks if high density large par... Read More about Nano-hardness and microstructure of selective laser melted AlSi10Mg scan tracks.

Reducing porosity in AlSi10Mg parts processed by selective laser melting (2014)
Journal Article
Aboulkhair, N. T., Everitt, N. M., Ashcroft, I., & Tuck, C. (2014). Reducing porosity in AlSi10Mg parts processed by selective laser melting. Additive Manufacturing, 1-4, 77-86. https://doi.org/10.1016/j.addma.2014.08.001

Selective laser melting (SLM) is widely gaining popularity as an alternative manufacturing technique for complex and customized parts. SLM is a near net shape process with minimal post processing machining required dependent upon final application. T... Read More about Reducing porosity in AlSi10Mg parts processed by selective laser melting.