The effects of preheating temperature on the microstructural evolution and mechanical properties of low-activity martensitic steel welded joints were investigated, with emphasis on the relationship between preheating temperature, δ-ferrite cont...
Axial variations in irradiation conditions along elongated fuel assembly components can produce locally different irradiation-induced material states and, consequently, different post-irradiation thermal responses. The present study investigates EI-8...
This study investigates the grain size effect on the high-temperature fretting wear–fatigue coupling damage of 2A70 aluminum alloy/42CrMoA steel pairs at 115 °C for bolted connections in steel-crown aluminum-skirt composite pistons. Two gra...
The hydrometallurgical processing of primary and secondary copper sulfides is challenging because of leaching resistance and surface passivation. Due to their physicochemical properties, ionic liquids have shown potential in the leaching of sulfide m...
The laws of Coulomb and constant shear friction, with a constant friction coefficient and friction factor, respectively, are criticized by comparing experimental results with finite element (FE) predictions of a cold forward and backward extrusion pr...
The 20-high mills often face various flatness problems in the production of cold-rolled stainless steel thin strips. In the proposed model coupling method, the roll-stack elastic deformation equations and the strip plastic deformation equations are a...
Thermomechanical simulations with localized heat sources are affected by the approximation spaces used for temperature and displacement. This paper examines spline continuity and truncated hierarchical B-spline (THB-spline) local refinement on a shar...
Welding and joining technologies remain fundamental enabling processes in modern manufacturing, supporting the production of structures and components across a wide range of industrial sectors [...]
In this study, the high-temperature deformation behavior of TC11 titanium alloy was investigated through hot compression experiments. The relationship between flow stress, strain rate, and deformation temperature was described by analyzing stress&nda...
The slow-shot speed phase in high-pressure die casting critically governs molten metal flow within the shot sleeve, directly influencing air entrapment and casting defect formation. Conventional water modeling has been widely used to analyze this sta...
The pre-aging response of Al-Mg-Si alloys is controlled by both thermal history and solute balance. Three model alloys with similar total Mg + Si contents but Mg/Si ratios of approximately 0.5, 2, and 4 (MS0.5, MS2.0, and MS4.0) were pre-aged (PA) at...
Hydrogen processing of magnetic scrap (HPMS) is a promising short-loop route for recycling end-of-life NdFeB permanent magnets; however, the resulting hydrogenated powder requires vacuum degassing before reuse. This study defines a phenomenological d...
Silicon is an essential material for metallurgical and energy applications, yet its conventional carbothermic production is associated with high CO2 emissions. The SisAl process offers a low-emission alternative based on the reduction of SiO2 using a...
High-temperature high-entropy alloys (HTHEAs) provide a large compositional space for tuning phase constitution, microstructure, elevated-temperature strength, creep resistance, and oxidation behavior. Their design is difficult for the same reason: p...
Components loaded in cyclic torsion are often also subjected to a static compressive stress, but whether this stress extends or shortens the fatigue life is not resolved. Double-cone specimens of the nickel-free, nitrogen-alloyed austenitic stainless...
The black streak defect on the surface of 304 stainless steel is one of the key issues affecting the quality of stainless-steel products and the economic benefits of the industry. Cold-rolled plates were selected, and the microscopic images and compo...
Titanium/steel composites were fabricated by Gleeble-simulated vacuum hot bonding with reduction rates of 50%, 60%, 70%, and 80% to clarify the effect of deformation on interfacial microstructure and bonding strength. The results show that interfacia...
The Magnetic Barkhausen Noise (MBN) measurement method is widely used to evaluate stress, microstructure, plasticity and other material states of ferromagnetic materials. However, stress assessment is generally affected by material inhomogeneity or a...
The effect of adding 1 wt.% graphene oxide (GO) to a low-carbon steel feedstock processed by metal injection molding (MIM) was investigated in terms of its thermal behavior, chemical composition after sintering, microstructure, and response to carbon...
Manganese sulfide (MnS)inclusions can markedly influence the mechanical properties, corrosion resistance, and processing behavior of stainless steels, making their control during solidification an important issue for improving steel quality. In this...
Medical-grade extra-low-interstitial Ti64 alloy (ELI Ti64) is a promising material for biomedical implants, and additive manufacturing facilitates the fabrication of complex implant geometries. However, additively manufactured ELI Ti64 typically exhi...
Insufficient ductility and processing-dependent mechanical properties limit laser powder bed-fused (LPBF) high-nitrogen stainless steels. This study investigated short-term solution treatment of an Fe–Cr–Mn–Mo–N duplex stainle...
The selective transformation of iron-bearing phases in ferruginous manganese ores requires control of temperature and local reducing conditions. This study examines temperature-dependent relationships in the Fe–Mn–C–O system through...
This study evaluates the applicability of lead-free SnAg5 solder in Resistance Element Soldering (RES) technology for joining an AISI 304 stainless steel sheet and a PMMA (polymethyl methacrylate) thermoplastic. The microstructure and properties of t...
The compact cast-rolling compound forming of bimetallic rings is an efficient process for manufacturing large bimetallic rings, in which hot ring rolling is crucial for the microstructure and final performance of bimetallic rings. A 40Cr/Q345B bimeta...
A bifunctional chitosan-poly(aspartic acid) (CS-PASP) microgel with ionic crosslinking network was fabricated via ionic coupling for simultaneous corrosion inhibition and calcium carbonate scale suppression on carbon steel. The fraction of PASP (fPAS...
Ti-6Al-4V titanium alloy is widely used in aerospace, space exploration, and automotive manufacturing. Characterizing its high-temperature flow stress is essential for engineering design and numerical simulation. To address the limited prediction acc...
As an indispensable packaging technique for transmitter optical sub-assemblies (TOSAs), laser welding joins optical fibers and focusing lenses and exerts a decisive influence on the output optical power and long-term reliability of optoelectronic com...
Aluminum conductor terminations are limited by an alumina film that blocks wetting and raises interfacial resistance. Existing process models absorb flux behavior into a fitted decay factor, so the composition and current schedule are tuned sequentia...
Qualification of PBF-LB/M components remains experimentally intensive, motivating data-efficient prediction of mechanical performance. This study evaluates nine machine-learning models, from Decision Tree to Transformer architectures, for predicting...
Additive manufacturing technologies are continuously expanding their range of applications, with new use cases emerging across an increasingly broad spectrum of industries. From mechanical engineering to the medical sector, virtually all additive man...
This study evaluates nitrogen plasma immersion ion implantation (PIII) effects on the microstructure, mechanical response, and tribological performance of duplex coatings on AISI H13 steel, produced by nitriding and AlCrN physical vapor deposition (P...
A systematic study was conducted to determine correlations between reduced pressure testing metrics and tensile results in aluminum alloy castings. The metrics investigated are the density and bifilm indices that have been traditionally used in indus...
Accurate numerical reproduction of Charpy impact tests requires constitutive and damage models capable of representing material behavior under dynamic loading conditions. This study presents an experimental–numerical investigation of the impact...
Titanium and Ti-based alloys are widely used in dentistry, where their interfaces face chemical, microbial, mechanical, and tissue challenges. This focused narrative review considers endosseous and transmucosal implant interfaces, crowns, orthodontic...
The influence of quenching media on the residual stress of 7136 aluminum alloy extrusions was studied by the finite element simulation method. The results show a compressive stress at the component surface and tensile stress at the center. The maximu...
To determine appropriate quenching parameters for the Z45 slider, finite element simulation was combined with experimental characterization. A thermal–structural coupled model and an L9(33) orthogonal array were used to examine the effects of q...
In the current study, non-isothermal kinetics of NH4VO3 calcination were investigated under an air atmosphere and argon atmosphere, and the produced gas was detected by TG-MS. The results showed that the calcination process of NH4VO3 under an air atm...
To clarify the effects of stress on the creep behavior and related dislocations at room temperature, short-time compressive creep tests were carried out on Ti6321 specimens. An electronic universal testing machine (GNT100), combined with scanning ele...
Laser-ultrasonic zero-group-velocity (ZGV) Lamb-wave thickness gauging is examined for uniform, curved, rough-surface, and variable-thickness 7050 aluminium plates. Thickness is inferred from the first-order symmetric (S1) ZGV resonance using a mater...
In this study, comparative experiments on picosecond laser drilling were conducted in three different environments: air, water-based, and underwater. By varying the laser power (11–15 W), the effects of different water-assisted methods on hole...
Controlling molten droplet deposition and coating densification is crucial for improving the surface properties of lightweight aluminum alloys; however, the relationship between substrate temperature, splat spreading–solidification behavior, an...
The global community has become aware of the importance of reducing the consumption of primary resources to safeguard our planet and ensure the long-term economic sustainability of our society [...]
Recent trends in the welding and joining of advanced high-strength steels (AHSSs) increasingly focus on understanding and controlling the relationships among welding process parameters, thermal history, microstructural evolution, and the resulting me...
The radiation-section furnace tubes of ethylene crackers are critical pressure-bearing components, and their failure results from multiple coupled factors, which single evidence cannot fully explain. This paper proposes a multi-evidence diagnostic fr...
In the study, the corrosion behavior of X65 pipeline steel was investigated under the pressure of 8 MPa in both supercritical (SC) and dense-phase (DP) CO2 environments with different water contents from 18% to 1000% relative humidity (RH). The resul...
Aluminum foam-filled tubes (AFFTs) with different tube wall materials were fabricated via an in situ tube wall forming method based on gravity casting. The effects of key process parameters, including preheating temperature, preheating time, pouring...
Charging direct reduced iron (DRI) into a blast furnace alters the softening–melting–dripping behavior of mixed burdens; however, the influencing laws and mechanisms remain unclear. In this study, DRI, pellets, and sinter were used as raw...
This study explores the application of ultrasonic nanocrystal surface modification (UNSM) technology to both new and aged golf putters to improve shot performance. Unlike drivers and irons, putters are used for short-distance shots, making directiona...
This study examines early tensile strain localization in commercial C17200 beryllium copper using tensile testing, digital image correlation and fast Fourier transform-based crystal plasticity simulations. Surface measurements on one specimen reveale...
