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Article
Open AccessEffect of hafnium and molybdenum addition on inclusion characteristics in Co-based dual-phase high-entropy alloys
Specific grades of high-entropy alloys (HEAs) can provide opportunities for optimizing properties toward high-temperature applications. In this work, the Co-based HEA with a chemical composition of Co47.5Cr30Fe7....
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Article
Open AccessA thermodynamic perspective on electrode poisoning in solid oxide fuel cells
A critical challenge to the commercialization of clean and high-efficiency solid oxide fuel cell (SOFC) technology is the insufficient stack lifespan caused by a variety of degradation mechanisms, which are as...
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Article
Open AccessMicrostructure and thermal properties of dissimilar M300-CuCr1Zr alloys by multi-material laser-based powder bed fusion
Multi-material laser-based powder bed fusion (PBF-LB) allows manufacturing of parts with 3-dimensional gradient and additional functionality in a single step. This research focuses on the combination of therma...
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Article
Open AccessInsights into the oxidation resistance mechanism and tribological behaviors of multilayered TiSiN/CrVxN hard coatings
In the last decades, vanadium alloyed coatings have been introduced as potential candidates for self-lubrication due to their perfect tribological properties. In this work, the influence of V incorporation on ...
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Article
Open AccessHydrogen-based direct reduction of iron oxide at 700°C: Heterogeneity at pellet and microstructure scales
Steel production causes a third of all industrial CO2 emissions due to the use of carbon-based substances as reductants for iron ores, making it a key driver of global warming. Therefore, research efforts aim to ...
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Article
Open AccessFluidization behavior and reduction kinetics of pre-oxidized magnetite-based iron ore in a hydrogen-induced fluidized bed
The influence of different pre-oxidation temperatures and pre-oxidation degrees on the reduction and fluidization behaviors of magnetite-based iron ore was investigated in a hydrogen-induced fluidized bed. The...
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Article
Open AccessEnergy storage for black start services: A review
With the increasing deployment of renewable energy-based power generation plants, the power system is becoming increasingly vulnerable due to the intermittent nature of renewable energy, and a blackout can be ...
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Article
Open AccessEvaluating data-driven algorithms for predicting mechanical properties with small datasets: A case study on gear steel hardenability
Data-driven algorithms for predicting mechanical properties with small datasets are evaluated in a case study on gear steel hardenability. The limitations of current data-driven algorithms and empirical models...
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Article
Open AccessHydrogen effect on the mechanical behaviour and microstructural features of a Fe-Mn-C twinning induced plasticity steel
The influences of hydrogen on the mechanical properties and the fracture behaviour of Fe-22Mn-0.6C twinning induced plasticity steel have been investigated by slow strain rate tests and fractographic analysis....
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Article
Open AccessEffect of weld microstructure on brittle fracture initiation in the thermally-aged boiling water reactor pressure vessel head weld metal
Effects of the weld microstructure and inclusions on brittle fracture initiation are investigated in a thermally aged ferritic high-nickel weld of a reactor pressure vessel head from a decommissioned nuclear p...
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Article
Open AccessStress-state dependence of dynamic strain aging: Thermal hardening and blue brittleness
This study aims to discover the stress-state dependence of the dynamic strain aging (DSA) effect on the deformation and fracture behavior of high-strength dual-phase (DP) steel at different deformation tempera...
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Article
Open AccessMultiphase-field simulation of austenite reversion in medium-Mn steels
Medium-Mn steels have attracted immense attention for automotive applications owing to their outstanding combination of high strength and superior ductility. This steel class is generally characterized by an u...
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Article
Open AccessNew insights into the properties of high-manganese steel
In the Collaborative Research Centre 761’s “Steel ab initio - quantum mechanics guided design of new Fe based materials,” scientists and engineers from RWTH Aachen University and the Max Planck Institute for Iron...
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Article
Open AccessErratum to: Interactions of molten salts with cathode products in the FFC Cambridge Process
The copyright information of the print version for this article unfortunately is not the same with that of the online version. The copyright information of the online version is right, which is “© The Author(s...
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Article
Open AccessInteractions of molten salts with cathode products in the FFC Cambridge Process
Molten salts play multiple important roles in the electrolysis of solid metal compounds, particularly oxides and sulfides, for the extraction of metals or alloys. Some of these roles are positive in assisting ...
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Article
Open AccessOptimization of the heat treatment of additively manufactured Ni-base superalloy IN718
Additive manufacturing (AM) of Ni-base superalloy components can lead to a significant reduction of weight in aerospace applications. AM of IN718 by selective laser melting results in a very fine dendritic mic...
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Article
Open AccessProcess mineralogy as a key factor affecting the flotation kinetics of copper sulfide minerals
The aim of this study is to apply process mineralogy as a practical tool for further understanding and predicting the flotation kinetics of the copper sulfide minerals. The minerals’ composition and associatio...
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Article
Open AccessCleanliness of Ti-bearing Al-killed ultra-low-carbon steel during different heating processes
During the production of Ti-bearing Al-killed ultra-low-carbon (ULC) steel, two different heating processes were used when the converter tap** temperature or the molten steel temperature in the Ruhrstahl–Her...
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Article
Open AccessMicrostructure and mechanical properties of a hot-extruded Al-based composite reinforced with core–shell-structured Ti/Al3Ti
An Al-based composite reinforced with core–shell-structured Ti/Al3Ti was fabricated through a powder metallurgy route followed by hot extrusion and was found to exhibit promising mechanical properties. The ultima...
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Article
Open AccessInterfacial microstructure and mechanical properties of Ti−6Al−4V/Al7050 joints fabricated using the insert molding method
Ti−6Al−4V/Al7050 joints were fabricated by a method of insert molding and corresponding interfacial microstructure and mechanical properties were investigated. The interfacial thickness was sensitive to holdin...
