Articles tagged with Metallurgy
Researchers at Northwestern University found that heat strengthens pure metals under extreme conditions, challenging long-held assumptions. The study revealed a stark divide between pure and alloyed metals, with pure metals becoming stronger and harder as temperatures increased.
Researchers have created a process to produce clean hydrogen from freshwater and seawater using liquid metals powered by sunlight. The method avoids many obstacles in current hydrogen production methods, including the need for purified water and high costs. The team is working to improve efficiency for commercialization.
LIST's patented infrared welding process enables rapid assembly of thick carbon-fibre-reinforced thermoplastic components, reducing weight, costs and environmental impact. The innovation is estimated to reduce CO2 emissions by 12.5 tonnes per wing rib.
Researchers at Nanjing University of Aeronautics and Astronautics created an active metal metamaterial that can bend and recover its shape, enabling aircraft wings to morph smoothly in flight. The material is lightweight, strong, and capable of adjusting its shape on demand.
A new study proposes a two-stage decision-making framework for lithium governance in Latin America, highlighting the role of external pressures, internal politics, and industry development. The research suggests that engagement strategies must consider these factors to succeed in the region.
Researchers at Max Planck Institute present efficient and low-CO2 process to extract copper, nickel, and cobalt from deep-sea ore nodules. The method generates significantly less waste and deforestation compared to traditional land-based mining.
Researchers at MIT used CT scans to study 5,000-year-old slag waste from an ancient site in Iran, revealing fine details about structures within the pieces. The technique complements traditional methods of studying ancient artifacts, shedding light on materials used and technological sophistication of early metallurgists.
The research partnership aims to develop stronger aluminum alloys for high-performance applications. Three projects focus on reducing iron impurities through electrical or chemical approaches.
Global experts discuss the future of additive manufacturing in various applications, including bioprinting living tissues and creating smart consumer products. Researchers showcase advancements in machine learning, real-time sensing, and multi-material 3D printing.
Researchers at Hanbat National University have developed a game-changing heat shield technology that provides dual-layer protection for high-temperature alloys. The sequential B-Si coating technology allows these alloys to withstand extremely high temperatures, potentially transforming the aviation industry.
A new post-processing route improves tensile strength and ductility in 3D-printed alloys by combining deep cryogenic treatment and laser shock peening. This method transforms the microscopic structure of 3D-printed metals, relieving internal stresses and enhancing mechanical resilience.
The researchers developed a novel facet-guided metal plating strategy using Zn as the host metal, which promotes uniform metal growth and suppresses dendrite formation. The strategy improved battery stability, retaining 87.58% of its initial capacity over 900 cycles.
Researchers have developed Laser Ablation Dry Aerosol Printing (LADAP) that generates nanoparticles from solid targets using pulsed laser ablation, enabling the printing of metals and oxides without inks. The technique produces structures with fine-resolution microstructures and thick deposition within a high-throughput process.
Researchers have developed flexible electrodes that mimic skin's softness and stretchability, enabling stable high-quality signals. Composite designs combining metallic systems are being explored to balance flexibility, conductivity, and transparency.
Researchers at MIT have developed a 3D-printable aluminum alloy that is five times stronger than traditionally manufactured versions. This breakthrough could lead to lighter and more efficient aircraft parts, such as fan blades in jet engines, reducing energy consumption and costs.
Researchers found that composite metal foam can withstand repeated heavy loads even at temperatures of 400 and 600 degrees Celsius. The material's high strength-to-weight ratio makes it suitable for applications such as aircraft wings, vehicle armor, and nuclear power technologies.
Researchers develop flexible batteries with internal voltage regulation using liquid metal microfluidic perfusion and plasma-based reversible bonding techniques. This technology addresses limitations of traditional rigid batteries.
The University of Pittsburgh has received prestigious R&D World 100 Awards for two emerging technologies: VulcanAlloy and eMission Critical Sensor. These innovations can withstand high temperatures continuously approaching 500 degrees Celsius and identify rare earth elements in waste streams or feedstocks, respectively.
Researchers are making progress in overcoming technical hurdles to create layered structures, continuous gradients, and fully three-dimensional architectures with programmable material variation. Optimized laser parameters and build sequences can enhance strength, control heat flow, and improve energy absorption.
Researchers developed novel artificial bone scaffolds with high deformation recovery capabilities, exceeding those of natural bone and conventional metallic scaffolds. These scaffolds allow for flexible adjustments of properties like strength and modulus to meet specific implantation site requirements.
Researchers from NIMS discovered that prior cyclic deformation improves the fatigue limit of steel by suppressing crack initiation. A novel pre-fatigue training technique successfully doubled the fatigue limit of high-strength martensitic steel, providing an effective alternative to tempering heat treatment.
The University of Tennessee, Knoxville is collaborating with Mississippi State University to create new steels for the US Navy using a $5 million award. The team will focus on developing new steel materials, welding and strengthening mechanisms, as well as wire arc additive manufacturing.
Researchers develop smart planning systems to predict weld bead geometry and optimize deposition paths, reducing thermal stresses and defect rates. Innovations in real-time monitoring and auxiliary strategies improve material integrity and mechanical properties.
International Journal of Extreme Manufacturing (IJEM) achieves a new Impact Factor of 21.3, surpassing 20 for the first time and maintaining its position as top journal in the field. IJEM has attracted submissions from 853 institutions in 81 countries.
A new end-to-end framework, DarkAD, enhances anomaly detection in low-light environments by introducing a feature adapter that reduces noise and amplifies critical features. The model outperforms other state-of-the-art models in detecting subtle anomalies with high accuracy and speed.
Researchers at Max Planck Institute for Sustainable Materials have developed a carbon-free method to extract nickel from low-grade ores in a single step, reducing CO2 emissions by 84% and increasing energy efficiency. The approach enables the use of low-grade nickel ores, which account for 60% of total nickel reserves.
Researchers have developed a new alloy design strategy that combines exceptional strength with superior resistance to hydrogen embrittlement. The approach enables dual nanoprecipitates to trap hydrogen and enhance strength, resulting in a 40% increase in strength and a five-fold improvement in hydrogen embrittlement resistance.
A new standard in lithium processing has been set with the innovative EDTA-aided loose nanofiltration (EALNF) technology, which extracts both lithium and magnesium simultaneously. The method achieves 90% lithium recovery and turns leftover magnesium into a valuable product, reducing waste and its environmental impact.
A team of researchers led by UC Santa Barbara's Justin Wilson has developed a technique to purify certain rare earth elements at room temperature using optimized chelators. This new process can concentrate dysprosium by a factor of over 800, compared to less than 10 for the industry standard.
A team of researchers from POSTECH has introduced a novel approach to balance strength and elongation in metallic materials. By using periodic spinodal decomposition, they created an alloy that boasts both high strength and high elongation, achieving a yield strength of 1.1 GPa with nearly the same elongation as before.
Researchers at the University of Sydney have proposed a new way to reduce industrial emissions by utilizing liquid metals in chemical reactions. This approach aims to decrease energy requirements and lower greenhouse gas emissions.
Researchers developed an AI model that accurately predicts metal yield strength by combining physical theory with machine learning. The model outperforms traditional methods, which often rely on extensive experimentation.
Researchers at the Institute of Industrial Science, The University of Tokyo, have developed a cost-effective method to produce nearly oxygen-free titanium. This process could facilitate mass production of titanium alloys in industries such as electronics and aerospace.
A team from Osaka University used electron microscopy and computer simulations to study the kinetics of microstructure formation in Fe3Al, leading to a deeper understanding of its superelastic properties. The findings could provide insights for heat treatments and applications in construction and healthcare industries.
Researchers at MIT found that copper can be as strong as steel when struck by a super-high velocity object, contradicting decades of studies. The new discovery could lead to new material designs for extreme environments, such as hypersonic aircraft and equipment for high-speed manufacturing processes.
The study demonstrates experimentally that the electronic and mechanical properties of a metal are connected. Researchers measured lattice distortion as a function of applied stress in the superconducting metal strontium ruthenate, finding changes in mechanical stiffness corresponding to new electronic states becoming occupied.
A team of researchers from City University of Hong Kong and Shanghai Jiao Tong University has developed a novel aluminium alloy with unprecedented fatigue resistance using advanced 3D printing techniques. The new alloy, called NTD-Al, surpasses the fatigue strength of high-strength wrought Al alloys and conventional metals.
Researchers at Chalmers University of Technology have developed a new method for recycling metals from spent electric car batteries using oxalic acid. The method allows for the recovery of 100% of aluminum and 98% of lithium, minimizing waste and utilizing an environmentally friendly ingredient.
Recent progress in metallic powders characterization, preparation, and reuse for laser powder bed fusion (L-PBF) enhances printing consistency and reduces costs. Novel cost-effective methods like fluidized bed and cold mechanically derived method are emerging to prepare powders.
Scientists review preparation techniques for copper matrix composites with ceramic particles, enhancing mechanical properties and thermal conductivity. The study highlights the importance of particle characterization, interfacial bonding, and advanced preparation methods to optimize composite performance.
Researchers at Purdue University have developed a new steel alloy with extraordinary strength and plasticity, achieving a yield strength of about 700 megapascals. The treatment produced ultra-fine metal grains that exhibit super-plasticity, allowing the material to stretch and bend without rupturing.
The study investigates the atomic flow behavior during joint formation, exploring processing time, temperature, and stress distribution on nanojoints. The results reveal that local stress and capillary interactions significantly impact joint quality, leading to advances in industrial applications of Ag nanowire interconnect networks.
Researchers have created a new metal alloy that boasts the highest recorded toughness, with properties that improve at lower temperatures. The alloy, CrCoNi, exhibits exceptional strength and ductility, making it ideal for structural applications, despite most materials becoming brittle at low temperatures.
Using transformation-induced plasticity (TRIP) and twinning-induced plasticity (TWIP), researchers design metastable alloys that can overcome the strength-ductility trade-off. The resulting materials are self-strengthening, making them suitable for applications such as earthquake construction, naval ships, and aerospace.
Researchers have discovered a way to create devices that mimic natural photosynthesis, producing fuels like hydrogen instead of sugars. The breakthrough uses bismuth oxyiodide, a non-toxic semiconductor material that can produce clean hydrogen from water over weeks.
Researchers combined X-ray absorption spectroscopy with single-cell inductively couple plasma mass spectrometry to analyze the interaction between precious metals and Galdieria sulphuraria cells. They found that the amount of metal adsorbed depended on the metal type and solution acidity, revealing differential adsorption mechanisms.
Researchers at City University of Hong Kong have discovered a super-elastic high-entropy Elinvar alloy that retains its stiffness even after being heated to 1000 K. The alloy's unique structure and chemical composition allow it to store a large amount of elastic energy, making it suitable for high-precision devices in aerospace enginee...
Researchers from City University of Hong Kong created a new titanium-based alloy using additive manufacturing, boasting unprecedented structures and properties. The alloy exhibits high tensile strength, excellent work-hardening capacity, and is up to 40% lighter than stainless steel, making it suitable for various structural applications.
Researchers at Lawrence Berkeley National Laboratory have discovered a new path forward for processing titanium. Cryo-forging at ultra-low temperatures produces extra-strong nanotwinned titanium with improved strength and ductility. The material maintains its structure and properties at extreme temperatures, demonstrating its versatility.
Researchers have found that a conventional model for predicting material microstructure does not apply to polycrystalline materials. They used near-field high energy diffraction microscopy (HEDM) to study grain boundaries, revealing that the model's predictions are inconsistent with experimental data.
Researchers at Aalto University have developed a non-toxic alternative to traditional cyanide-based gold extraction processes. The new chloride-based method, called EDRR, achieves an impressive 84% gold recovery rate, surpassing the 64% recovered with traditional cyanide methods.
Researchers at Texas A t&M University have developed a method to create defect-free metal parts using laser powder bed fusion 3D printing. By combining machine learning and single-track experiments, they identified favorable alloy chemistries and process parameters to print parts with uniform properties at the microscale.
Scientists at Ural Federal University and RAS developed a technology to process metallurgical slag into valuable materials such as cast iron and Portland cement clinker. The technology eliminates the problem of environmental pollution by industrial enterprises.
A recent archaeological comparison of genetic traits indicates that Moche sacrificial victims were not local elite, but rather warriors captured from nearby valleys. This finding suggests territorial conflict and competition among Moche populations in each valley.