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Al-Cr-Fe-Ni eutectic high-entropy alloys (EHEAs) with an FCC + B2 dual-phase microstructure are promising candidates for high-temperature structural applications, yet the competitive oxidation behavior between the two phases at elevated temperatures...
Because of the increasing demand for lithium, interest has grown in developing highly efficient methods to separate lithium from non-conventional sources such as lithium clays. This study assesses electrodialysis (EDU) and capacitive deionization (CD...
This study investigates the microstructure and texture inheritance of cold-pilgered Ti-3Al-2.5V titanium alloy tubes for aerospace hydraulic systems during recrystallization annealing at 590 °C, 620 °C, and 720 °C. Tubes with radial and c...
This review examines current approaches to the development of multicomponent functional systems based on secondary aluminum alloys, mechanochemically modified metal powders, metal–organic frameworks, and aerosol-generating materials. It is show...
The evolution of mold flux performance in the mold induced by tundish flux drainage is important for understanding mold flux failure, yet few studies address this issue. This study systematically investigates and elucidates the relationship between t...
Continuous carbon fiber-reinforced aluminum matrix (Cf/Al) composites offer excellent mechanical properties but face fabrication challenges due to poor wettability and the formation of brittle Al4C3 at high temperatures. Ultrasonic consolidation (UC)...
Multi-pass cold drawing and subsequent annealing are critical processing steps determining the microstructure and mechanical performance of vanadium wires, as they directly influence the performance of the final product. This study systematically inv...
Mg-Nd-Gd-Zn-Zr alloys containing 0, 0.20, and 0.75 wt.% Sr were prepared by gravity casting to investigate the effects of Sr microalloying on as-cast microstructure, solution-treatment response, and age-hardening behavior. The alloys were characteriz...
Mn-Cu alloys have attracted considerable attention as structural damping materials because they combine excellent damping capacity with relatively good mechanical properties. However, realizing effective strength-damping synergy still constitutes a c...
Arsenic contamination in drinking water poses a serious global public health threat, driving an urgent need for cost-effective technologies capable of efficient trace-level arsenic removal. In this study, a spherical iron–manganese composite ad...
For coarse-diameter electroplated diamond wires, the traditional horizontal sanding process suffers from inhomogeneous circumferential abrasive distribution, a lengthy manufacturing process, and poor production consistency. To address these issues, a...
This work investigates the impact of oxygen content in shielding gas on GTAW joints of commercially pure titanium. Commercially pure titanium GTAW welds exhibit unique color characteristics, with silver, straw, and white/gray indicating varying degre...
Flow characteristics constitute a fundamental factor governing the metallurgical performance of a tundish. The flow behavior of molten steel directly determines the floating removal efficiency of inclusions, the occurrence of slag entrainment, and th...
This study investigated the relationship between the solidification microstructure and the corrosion susceptibility of Inconel 625 fabricated by directed energy deposition (DED). Specimens were deposited under three coupled processing conditions, in...
Al2O3-based inclusions in Ti-bearing ultra-low-carbon steel readily promote stopper-rod accretion and submerged entry nozzle clogging, thereby impairing molten steel cleanliness and casting stability. This study evaluated the performance of an LGTF11...
Increasing the proportion of pellets in blast furnace (BF) burdens raises the raw material iron grade and reduces slag volume, thereby lowering fuel consumption. However, due to their dense microstructure, pellets typically exhibit low degrees of red...
Chip-splitting can reduce cutting resistance, but its abrupt transition makes quantitative prediction difficult. This study proposes a catastrophe theory-informed framework for predicting the chip state and specific cutting force in the thread turnin...
Fe–Cr–Co alloys are deformable hard-magnetic materials that combine high coercivity with the possibility of conventional thermomechanical processing. In this work, the transition from limited ductility to superplastic deformation was inve...
This study compares high-grade non-oriented electrical steels without rare-earth addition and with a La-Ce combined rare-earth treatment. Optical microscopy, X-ray diffraction (XRD), and electron backscatter diffraction (EBSD) were used to characteri...
The combined damage induced by the nitrate molten salt corrosion and cyclic loading at elevated temperatures is an important damage issue for the reliable operation of concentrated solar power (CSP) plants. In previous works, the effect of the molten...
High-entropy alloys (HEAs) and refractory high-entropy alloys (RHEAs) have received considerable attention as innovative reinforcements to replace traditional ceramics in lightweight matrices. However, understanding how different high-entropy systems...
The solvent extraction and separation process for scandium(III) (Sc) and titanium(IV) (Ti) from titanium white waste acid (TWWA) was studied. The influences of process parameters, including extractant type, feed solution acidity, and di(2-ethylhexyl)...
This study provides a comprehensive analysis of the mechanical properties and structural integrity of butt-welded P91 creep-resistant steel pipe joints utilized in high-pressure piping systems. Two pipe specimens with an outer diameter of Ø48....
Wire Laser Additive Manufacturing (WLAM) has emerged as a promising directed energy deposition technology, combining the high deposition efficiency of wire-fed processes with the localized heat input and dimensional accuracy provided by laser process...
Severe surface wear serves as a critical factor that limits the service life and operational reliability of precision mechanical components, whereas protective coatings offer an effective approach to mitigate surface wear and prolong the service life...
The effects of post-diffusion annealing on the microstructure and coercivity of sintered Nd-Fe-B magnets are investigated using a Pr66Tb10(CoAlGa)24 diffusion source. Grain boundary diffusion increases the coercivity from 8.95 to 23.20 kOe, while sub...
A custom low-chromium MoNiCr alloy produced by wire-fed laser directed energy deposition (W-DED) was exposed to eutectic LiF–BeF2 (FLiBe) at 750 °C for 1000 h to assess corrosion of the retained deposition surface. A nominally 100 × 1...
Ammonia leaching constitutes a selective route for the recovery of metals from used lithium-ion batteries, but the relationship between the extraction of metals and the evolution of residues remains insufficiently understood. This study focused on th...
Agricultural machinery components are subjected to multiple failure challenges, including wear, corrosion, and fatigue, during prolonged service under complex operating conditions. Surface coating technology is a critical approach to enhance service...
A vertical-type high-speed twin roll caster can cast aluminum alloy strip at speeds from 20 to 90 m/min; however, surface cracks occur on the cast strip. In Al-Si alloys, surface cracks are known to occur when the Si content is less than 5 mass%. The...
This study investigates the combustion behavior, composition-dependentl,3 combustion regimes, and temperature–time characteristics of ammonium perchlorate (AP)-based energetic compositions containing commercial aluminum (Al) and secondary Al-Si...
Niobium can concentrate in TiCl4 wet scrubber slurry during molten-salt chlorination of ilmenite-derived titanium slag. This study presents an engineering assessment using published Nb-routing data, characterization of an isolated slurry solid, HSC C...
Powder metallurgy combined with hot isostatic pressing (PM-HIP) enables the fabrication of near-net-shape titanium alloy components with near-theoretical density, yet the HIP temperature fundamentally determines the densification behavior, phase cons...
Safe long-term storage of spent nuclear fuel requires materials that combine high neutron absorption with excellent corrosion resistance. In this study, two Gd-doped Fe-based amorphous coatings (2X5 + Gd and PC + Gd) containing 6.0 wt.% Gd were fabri...
Developing efficient non-precious electrocatalysts for the hydrogen evolution reaction (HER) is crucial to advancing scalable green hydrogen generation. Herein, vertically aligned TiO2 nanotube arrays were directly grown on Ti substrates via electroc...
In recent years, CoCrFeMnNi high-entropy alloy (HEA) has attracted considerable attention owing to its exceptional mechanical properties, thermal stability and corrosion resistance. Friction surfacing (FS), as a solid-state additive manufacturing tec...
A high level of Fe impurity restricts the sustainable recycling and wide application of recycled aluminum alloys. Optimizing the phase selection to favor less harmful Fe-containing intermetallics is a critical strategy to develop high-performance all...
The hot stamping of boron-alloyed steel integrates forming with in-die quenching and is a core route to 1500 MPa class automotive safety components, yet its parameter design still lacks a unified theoretical basis. This article critically reviews the...
Additive manufacturing of metals has brought new challenges for the assessment of fatigue strength and service life, and for metal components necessitates standardization of both production and engineering procedures for calculating their fatigue lif...
This study investigates the role of shots on shot peening of austenitic steel AISI 304 as a function of shot peening cycles when the conventional steel shots are compared with the ceramic ones. The surface state is analysed in terms of dislocation de...
Microstructural heterogeneity plays an important role in the localized corrosion behavior of aluminum alloys. However, the contribution of fine α-Al(Mn,Fe)Si dispersoids remains insufficiently understood. This study investigates how dispersoid...
Hybrid machining combining laser and mechanical processes has attracted increasing attention for improving the machining efficiency of hard-to-cut materials. In this study, a sequential hybrid machining concept is proposed in which nanosecond-pulsed...
Selective zinc recovery from pregnant leach solutions obtained by sulfuric acid leaching of oxidized zinc ores is an important task in hydrometallurgy. This study comparatively evaluated zinc sulfide precipitation using gaseous H2S and Na2S solution...
Multi-pass welded joints of 10CrNi3MoV high-strength low-alloy (HSLA) steel were systematically investigated for high-cycle fatigue (HCF) behavior using microstructural characterization, mechanical behavior, and inherent defect analysis. Gas metal ar...
The chemical similarity among gallium, germanium, indium, rhenium, tellurium and their associated impurities complicates their separation. We present a unified framework that divides separation into two functionally defined stages: (i) a release stag...
A sequential lithium-recovery process combining hydrogen reduction, water leaching, CaCO3-assisted thermal conversion under a CO2 atmosphere, and a second water-leaching step was investigated using an LFP cathode manufacturing byproduct as the starti...
This study reports the fabrication of Al 1050/WC composites (2 and 4 wt.% WC) using a novel ingot-stacked, disc-consolidated approach via indirect extrusion. The results revealed that indirect extrusion transformed the initial flat, WC-coated disc in...
Ti microalloying can effectively improve the comprehensive properties of 20CrMnTi gear steel, but it also readily leads to the formation of large-sized TiN inclusions with sharp angular edges, which act as preferential initiation sites for fatigue cr...
The hydrogen storage properties of LaNi5 framework materials prepared by filling porous substrates with LaNi5 powders were studied. Aluminum silicate fiber blanket, 110 pores per inch (PPI) polyester foam, and 70 PPI and 110 PPI nickel foams were use...
The damage evolution of Ni-Cu-Mo conventionally sintered (CS) steels was investigated and compared to the damage resistance of a fully dense equivalent model material obtained by spark plasma sintering (SPS). The complex microstructure of the CS mate...
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