Articles tagged with Ductility
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Researchers at POSTECH developed a nickel-based high-entropy alloy that maintains strength and ductility across a wide temperature range from -196°C to 600°C. This stability is attributed to the presence of nanoscale precipitates, which inhibit deformation and accommodate stress through consistent slip behavior.
A new study explores ultra-high-speed machining, revealing that high-performance materials pose challenges such as low efficiency and rapid tool wear. The researchers identify three typical material removal mechanisms: ductile-mode, brittle-mode, and extrusion removal, with the latter having a broader range of applicability.
Researchers created a strong and tough CoNiCr alloy by overcoming intermediate temperature brittleness using grain boundary engineering. The alloy's fracture mode changed from intergranular to ductile fracture, increasing elongation to fracture from 1% to ~10%.
A new study links various soft material behaviors, revealing a critical parameter called the brittility factor that simplifies failure behavior. This finding helps engineers design better materials for future challenges.
A new study from China reveals a novel strategy for enhancing the strength-ductility synergy of particle-reinforced aluminum matrix composites. The approach involves regulating the heterostructure of the matrix grain and particle distribution to achieve a balance between strength and ductility.
Researchers investigate grain size and temperature effects on Ti deformation at extremely low temperatures, finding that cryogenic temperatures trigger deformation twinning, boosting strength and ductility. The study proposes a modified Hall-Petch relationship to explain strengthening mechanisms at cryogenic temperatures.
Researchers at MIT have discovered that the sounds produced by rocks under different pressures can reveal their depth and strength, helping scientists identify unstable regions below the surface. This new method could aid in drilling for geothermal energy and understanding the Earth's crust.
Researchers developed a unique approach to predict metal ductility using quantum mechanics, filling the need for an inexpensive and efficient method. The new approach was tested on refractory multi-principal-element alloys and showed robust results, confirming its effectiveness in distinguishing between ductile and brittle materials.
Researchers investigated the fatigue behavior of 2D hybrid organic-inorganic perovskites (HOIPs), discovering they can survive over one billion cycles, outperforming most polymers under similar loading conditions. The study provides insights into designing and engineering these materials for long-term mechanical durability.
Researchers have discovered a way to create ductile ceramics that can exhibit ultimate strength of up to 11 GPa, potentially leading to improved energy efficiency and reduced material usage. However, further studies are needed to scale up the process and apply it to larger materials.
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.
A research team led by City University of Hong Kong discovered a new mechanism that increases both strength and ductility in high-entropy alloys. The findings provide insights for designing strong yet ductile materials and ceramics.
Researchers created a dual-phase, nanostructured high-entropy alloy with unprecedented strength and ductility through 3D printing. The alloy's unique microstructure enables cooperative deformation of two phases, resulting in ultrahigh strength and enhanced ductility.
Scientists at Georgia Institute of Technology observe unprecedented atomic processes that dictate mechanical behavior in metals. They develop novel methods to visualize grain boundary sliding, revealing previously unknown movements and accommodating transferred atoms through adjusting grain boundary structures.
Researchers create a multiscale model to track water quality indicators like nitrogen and mercury levels, incorporating biogeochemical reactions in microbially-active zones. They also develop 'stretchier' alloys by adding nano structures, which enhance strength and ductility, making them suitable for various applications. Additionally,...
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.
Scientists introduced tiny precipitates into an alloy, tuning their size and spacing to enhance both strength and ductility. This approach allows for the creation of lightweight, strong materials that can withstand catastrophic deformation without breaking.
Researchers analyzed detrital-zircon data from sandstones in the Ouachita orogen, revealing a mix of sediment dispersal pathways from multiple provenances. In Scotland, the Moine thrust zone hosted highly alkaline syenite intrusions with high-temperature contact metamorphic aureoles.
Researchers aim to develop new alloys that can be additively manufactured to produce strong yet ductile structures. By understanding the underlying mechanisms of grain refinement in complex concentrated alloys, they hope to create materials suitable for various engineering applications, including space exploration.
Researchers at the University of Pittsburgh have successfully used a new, biodegradable magnesium-alloy stent to treat pediatric laryngotracheal stenosis. The stent showed promising results in both lab testing and rabbit models, with low degradation rates and no adverse problems.
Researchers from Peter the Great St.Petersburg Polytechnic University produced a metal with increased ductility, three times higher than specified in standard. This discovery can change component design and improve material performance for industries like Aerospace.
Scientists at Tohoku University have developed a novel heat treatment technique that induces a 2D gradient rejuvenation state in bulk metallic glasses, resulting in improved ductility and tailored hardening. The technique enables the formation of a complete shear plane, blocking shear band propagation and increasing critical shear stress.
Researchers have discovered a way to resolve the conflict between high strength and ductility in intermetallic alloys by introducing disordered nanoscale layers at grain boundaries. These nanolayers improve the alloy's strength with excellent thermal stability at high temperatures, opening up new possibilities for designing structural ...
Researchers discovered that nanoprecipitates serve as both dislocation sources and obstacles, leading to a self-hardening deformation mechanism. This sustainable approach enhances ductility and strength in structural materials.
Researchers at Purdue University developed a new process to make ceramic materials more ductile and durable. The 'flash sintering' technique adds an electric field to conventional sintering processes, resulting in enhanced plasticity and resistance to brittle failure.
Researchers at Pacific Northwest National Laboratory have developed a single-step manufacturing process to produce nanostructured rods and tubes directly from high-performance aluminum alloy powder. The process, called ShAPE, achieves significant improvements in product ductility while eliminating multiple steps required in conventiona...
Researchers at Kanazawa University found that manipulating dislocations can control the ductility of pearlite, making it more resistant to shearing stress. This breakthrough could lead to new materials for constructing buildings and bridges that can withstand stronger earthquakes.
Researchers at Penn State used modeling methods to predict properties of ZIF glasses, combining transparency and metallic glass nonbrittle quality, with potential applications in gas storage and energy, promising breakthroughs in transparent and bendable glass
Researchers at City University of Hong Kong have developed a novel strategy to create high-strength alloys that are also extremely ductile and flexible. The breakthrough solution involves massive precipitation of nanoscale particles, solving the critical issue of the strength-ductility trade-off dilemma.
Using 3D crystallography, researchers at Nagoya Institute of Technology study how particles shape up metal composites. They found that controlling particle distribution can improve the composite's strength and ductility, leading to better materials for applications like bridge suspension wires.
Researchers present a new strategy to exploit dynamically reinforced multilevel heterogeneous grain structures for high-strength and large-ductility materials. This approach achieves a strength-ductility combination in a single-phase, simple-structured alloy that would normally require complex heterogeneities.
Researchers, including Prof. Dr. Satyam Suwas and Prof. Dr. Werner Skrotzki, investigate nanoplasticity to balance material strength and ductility. Their collaboration aims to understand fundamental nature of nanocrystalline materials and their applications in various industries.
Researchers have developed a new method for 3D printing metals that achieve exceptional strength and ductility. The breakthrough uses ultrafast cooling rates, resulting in non-equilibrium states that lead to improved mechanical properties.
Scientists have found a new mechanism of deformation at the boundaries of coherent twin crystal boundaries, which can increase material strength while preserving ductility. This discovery could lead to designing strong nanostructures and devices that respond to specific stress levels.
A Hong Kong-Beijing-Taiwan mechanical engineering team led by Dr. Huang Mingxin has developed a Super Steel with ultra-high strength and large ductility, addressing the strength-ductility trade-off in metallic materials. The material's cost is just one-fifth of that of current aerospace and defense applications.
Researchers at WMG, University of Warwick have developed a new processing route to control brittle stages during steel production. This breakthrough allows for the creation of low-density steels with maximum strength and durability, making them suitable for safer, greener, more fuel-efficient cars.
Scientists observed atomic-level cracking in 2D MoS2, revealing dislocations at the crack tip that can't be explained by existing theories. The study suggests a new theory is needed to understand 2D material behavior.
Researchers have developed a new type of metallic material that is both extremely strong and ductile. This breakthrough solves the long-standing problem of choosing between these two properties in steels.
The improved buckling restrained braces (IBRBs) feature contact rings between inner and outer tubes for lateral constraint, resulting in better behavior. Numerical simulations agree with test results, demonstrating the program's feasibility in analyzing overall stability strength capacity.
Researchers at North Carolina State University and Chinese Academy of Sciences have developed a technique to make titanium stronger while maintaining its ductility. The new material combines ultrafine-grained strength with coarse-grain ductility, enabling the creation of strong yet flexible materials for vehicle manufacturing.
Researchers have reported surprisingly high damage tolerance in electrochemically-lithiated silicon materials, suggesting all-silicon anodes may be commercially viable. The study found that above a certain concentration of lithium, the material becomes more tolerant to damage, making it possible to design durable silicon-based batteries.
Researchers at the University of Pittsburgh have made a groundbreaking discovery in the study of nanomaterials, revealing that tiny tungsten crystals can exhibit deformation twinning, which affects their strength and function. This phenomenon has significant implications for the development of nanostructured metals and alloys.
Researchers have created a high-entropy alloy that exhibits exceptional damage tolerance, tensile strength and fracture toughness values, even improving its properties at cryogenic temperatures. The alloy's unique nano-twinning phenomenon contributes to its remarkable mechanical behavior.
Scientists have developed a method to create stronger and more ductile metal materials by adjusting the internal structure, similar to bone and bamboo. This technique can be customized for various applications, including improving industrial steel's strength and ductility.
Researchers at Brown University have discovered a method to fortify steel by twisting it, allowing for improved strength while maintaining ductility. This breakthrough could lead to the development of new steel alloys for high-strength applications such as axles on high-speed trains.
Researchers develop new metallic glass with high elasticity, enabling more durable golf clubs and improved space science applications. The material's ability to be bent and spring back into shape is controlled by understanding the initiation of shear bands, which can lead to failure.
Researchers identified a critical fictive temperature (CFT) that determines glass ductility, suggesting any glass can be made ductile or brittle by adjusting cooling rates. The study applies to all glasses, not just metallic glasses, and has implications for designing ductile glasses.
Hydrogen can cause metals to become brittle and fail. Researchers have developed a model that predicts when and where embrittlement will occur, enabling the design of new, resistant materials.
A £6 million research programme aims to create new generation of high performance fibre reinforced polymer composites, capable of sustaining large deformations without breaking. The materials will provide greater reliability, safety and design flexibility, with the potential to reduce greenhouse gas emissions by up to 15%.
A research team from UNC Charlotte and Y-12 National Security Complex developed a method to eliminate long, dangerous strips of metal (chips) in machining ductile materials. The 'Modulated Tool-Path (MTP) Chip Breaking System' produces user-selectable chip lengths and workpiece finishes, preventing injuries and reducing costs.
Researchers at Caltech have developed a way to make brittle materials ductile by reducing their size, creating materials that are stronger than ever. The new materials could be used in aerospace vehicles and naval vessels, providing improved strength and durability.
Researchers at Sandia National Laboratories discovered that a block of salt can stretch rather than shatter, defying its brittle nature. This finding has potential implications for desalination efforts and understanding sea salt aerosols, which affect cloud nucleation, smog formation, and asthma triggers.
Researchers from Caltech have developed new titanium-based structural metallic-glass composites that are lighter, less expensive, yet still maintain their toughness and ductility. The breakthroughs could significantly improve the performance of aerospace structures.
Researchers discovered that materials like silica behave as ductile as gold at the nanoscale due to surface atom dominance. Nanoparticle size and morphology affect ductility and tensile strength.
The team is developing materials with similar properties to palladium, but cheaper and more readily available, to improve the efficiency of hydrogen fuel cells. The goal is to find a substitute for platinum, which is currently used as a catalyst in PEMs containing platinum.
Researchers developed a new computer modeling approach to study material behavior under stress, offering insights into designing materials with optimal balance between strength and ductility. The model reveals that twin boundaries play a critical role in the strength and ductility of metals.
Researchers at Ames Laboratory have identified 12 fully ordered, completely stoichiometric intermetallic compounds with remarkable ductility. These materials exhibit higher ASTM fracture toughness values comparable to commercial aircraft aluminum alloys.
Johns Hopkins researchers create ultra-strong copper that retains its ductility by manipulating the metal's microstructure through a process involving liquid nitrogen, rolling, and controlled heating. The resulting material exhibits enhanced strength without sacrificing flexibility.