Matthew Barnett
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View article: Sustainability of High Entropy Alloys and Do They Have a Place in a Circular Economy?
Sustainability of High Entropy Alloys and Do They Have a Place in a Circular Economy? Open
Ideally, new materials should foster sustainability. How to apply this to high entropy alloys (HEAs) is the subject of the present overview. We show HEAs have a number of potential applications in sustainable technologies. They may also sl…
View article: Dynamic precipitation in Al–Zn–Mg–Cu Alloys: A comparative analysis of uniaxial tension and cross-die forming
Dynamic precipitation in Al–Zn–Mg–Cu Alloys: A comparative analysis of uniaxial tension and cross-die forming Open
Al-Zn-Mg-Cu alloys are known for their exceptional mechanical properties, primarily achieved through precipitation hardening. This study investigates the dynamic precipitation behaviour in a pre-aged AA7075 alloy under uniaxial tension and…
View article: Effects of extreme deposition rate on the microstructure evolution of additive friction stir deposited AA6061 alloy
Effects of extreme deposition rate on the microstructure evolution of additive friction stir deposited AA6061 alloy Open
Additive manufacturing (AM) using additive friction stir deposition (AFSD) offers unique advantages over traditional liquid-solid state transitions, notably the ability to plasticise materials through frictional and deformation heat and bu…
View article: Impact of Sample Storage Time and Temperature on the Stability of Respiratory Viruses and Enteric Viruses in Wastewater
Impact of Sample Storage Time and Temperature on the Stability of Respiratory Viruses and Enteric Viruses in Wastewater Open
Wastewater-based surveillance (WBS) has been widely used to track SARS-CoV-2 as well as many other viruses in communities during the COVID pandemic and post-pandemic. However, it is still not clear how temperature and storage time would in…
View article: Enhancing strength and γ’-coarsening resistance through micro-alloying additions to an oxidation resistant Al-Co-Cr-Fe-Ni-Ti compositionally complex alloy
Enhancing strength and γ’-coarsening resistance through micro-alloying additions to an oxidation resistant Al-Co-Cr-Fe-Ni-Ti compositionally complex alloy Open
The effect of alloying additions of Mo and Ta (0.4 at% each) on the microstructure, mechanical properties, oxidation resistance and coarsening resistance of the L12-strengthened (γ’) Al-rich Ni51Co18Fe5Cr10Al12Ti4 alloy was determined. The…
View article: A COMPARISON BETWEEN THE RECRYSTALLIZATION BEHAVIORS OF WARM AND COLD ROLLED FERRITE
A COMPARISON BETWEEN THE RECRYSTALLIZATION BEHAVIORS OF WARM AND COLD ROLLED FERRITE Open
A COMPARISON BETWEEN THE RECRYSTALLIZATION BEHAVIORS OF WARM AND COLD ROLLED FERRITE
View article: Effect of precipitates on the dominant active slip systems in Mg-4.5Zn (wt.%) alloy
Effect of precipitates on the dominant active slip systems in Mg-4.5Zn (wt.%) alloy Open
The dominant active slip systems during plastic deformation of an extruded Mg-4.5Zn (wt.%) alloy with and without β1′ precipitates were investigated by means of advanced electron back-scattered diffraction techniques and transmission elect…
View article: The effect of phase constituents on the low and high stress abrasive wear behaviour of high entropy alloys
The effect of phase constituents on the low and high stress abrasive wear behaviour of high entropy alloys Open
The tribological properties of high-entropy alloys (HEAs) have been extensively studied in recent times but majority of the investigations have been limited to sliding wear behaviour and 2-body abrasive wear. There has been limited researc…
View article: Exploring the limits of Fe content in Al-Co-Cr-Fe-Ni-based eutectic high entropy alloys using CALPHAD-based alloy design
Exploring the limits of Fe content in Al-Co-Cr-Fe-Ni-based eutectic high entropy alloys using CALPHAD-based alloy design Open
Using AlCoCrFeNi2.1 alloy as the reference composition, a novel NiaAlb(FeCoCr)c eutectic high entropy alloy (EHEA) system is proposed. A strong linear relationship was established between the elemental combinations of Ni, Al and (Fe+Co+Cr)…
View article: Considering sustainability when searching for new high entropy alloys
Considering sustainability when searching for new high entropy alloys Open
International audience
View article: Influence of Cooling Rate After Destabilization on Microstructure and Hardness of a High-Cr Cast Iron
Influence of Cooling Rate After Destabilization on Microstructure and Hardness of a High-Cr Cast Iron Open
This study investigates the impact of cooling rate after destabilization at 980 °C on the microstructure of 23 wt pct Cr–2.7wt pct C hypoeutectic high-Cr cast iron. Lowering cooling rate intensifies the secondary carbides formation, deplet…
View article: Effect of C on microstructure and strength of AlxCu0.14CrFeMnNi-Towards producing a recycled high entropy alloy
Effect of C on microstructure and strength of AlxCu0.14CrFeMnNi-Towards producing a recycled high entropy alloy Open
The present study examines the effect of C and Al addition on a low-Cu containing multi-principal element alloy (MPEA) which has been shown to have high ductility. AlxCu0.14CyCrFeMnNi (x = 0, 0.15 and y = 0, 0.01, 0.04) alloys were arc cas…
View article: Additive friction stir deposition of super duplex stainless steel: Microstructure and mechanical properties
Additive friction stir deposition of super duplex stainless steel: Microstructure and mechanical properties Open
Additive Friction Stir Deposition (AFSD) is an emerging solid-state metal additive manufacturing (AM) process that offers several key benefits, including high deposition rates and wrought-equivalent mechanical properties even in the as-dep…
View article: Design principles for wear liners with inserts in mining chutes
Design principles for wear liners with inserts in mining chutes Open
Transporting of solid particles from one process step to another causes severe wear during bulk materials handling. This study derived design principles for wear liners with inserts for mining applications such as chutes. Two design parame…
View article: Wear simulation and validation of composites (insert-reinforced matrix) in the dry sand rubber wheel test
Wear simulation and validation of composites (insert-reinforced matrix) in the dry sand rubber wheel test Open
Composites generally possess a higher wear resistance than their constituents alone, but the governing mechanisms often remain unknown. This study numerically investigated the wear of composites (insert-reinforced matrix), caused by abrasi…