Articles tagged with Corrosion
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Soybean rust, a fungal disease affecting crops in Africa, Asia, Australia, and South America, has caused up to 80% yield losses. Plant pathologists will discuss research on overwintering, movement, host plant resistance, and chemical control during the APS Annual Meeting symposium.
Researchers created a novel statistical technique to analyze neural activity in response to random, complex images. This approach revealed previously unsuspected mechanisms that contribute to the brain's processing of visual information.
Researchers have made significant progress in developing lead-free solders and electrically-conductive adhesives, offering environmentally friendly alternatives to conventional solder materials. However, challenges remain, including high processing temperatures and conductivity fatigue.
A comprehensive plan has been developed by Virginia Tech to minimize losses from Soybean Rust, a disease that severely affected Brazilian soybeans. The plan includes educational programs and a monitoring system to identify the disease, as well as guidelines for scouting and treating infected fields.
Conductive adhesives offer an alternative to tin-lead solder, but overcoming low current density and corrosion challenges remained. Researchers at Georgia Tech used self-assembled monolayers and a three-part anti-corrosion strategy to increase current density, paving the way for high-performance conductive adhesives.
Scientists have created a model that simulates how corrosion spreads through an alloy, inspired by the cracking of a brick wall. The research could help predict when preventive maintenance is needed for aircraft materials.
A five-year study by Virginia Tech researchers found that lead bullets do not leach into water tables or streams after landing on controlled shooting ranges. The study's findings suggest that lead is mostly absorbed in the top few inches of soil and does not pose a significant risk to wildlife.
Researchers will model the behavior of individual atoms to gain a better understanding of stress corrosion cracking in metals. The goal is to prevent damage and create more corrosion-resistant materials, leading to safer structures and potentially even improved comfort for travelers.
A new computational method developed by Widom and colleagues allows scientists to virtually predict the formation of amorphous metals and identify potential mixtures for metallic glass production. This approach has shown promising results in generating metallic glasses with remarkable corrosion resistance, strength, and elasticity.
Researchers have developed a new paint that prevents corrosion by capturing and releasing corrosion-fighting agents when needed. The pigment contains cerium, a natural anti-corrosion mineral, and can be used in conjunction with other corrosion inhibitors to provide enhanced protection.
The study suggests that lakes can have either a high or low abundance of invasive rusty crayfish, favoring native species or altering fish populations. Researchers believe alternate states of crayfish abundance may exist among lakes, allowing for strategies to remove these invaders and restore habitats.
A new computer model predicts that soybean rust, a highly aggressive form of the disease, has already spread to Brazil and Venezuela, putting the US at high risk. The model suggests that the disease will reach the US within the current growing season or no later than two years.
Researchers have developed a high-performance concrete bridge deck mixture that can extend the life of bridges to 100 years, reducing costs and environmental impact. The mixture uses recycled fly ash, silica fume, and ground granulated blast furnace slag to improve durability and reduce corrosion.
A Penn State study has found that six domestic oils provided adequate corrosion protection for concrete bridge tendons in various test environments. The top-performing products from the study, including Citgo Cutting Oil NC 205 and Shell/Texaco Dromus ABD, will undergo further testing to examine their bond and ultimate flexural capacity.
Researchers have decoded the genome of Desulfovibrio vulgaris, a microbe responsible for microbially-influenced corrosion. The analysis provides insights into the microbe's capacity and flexibility to reduce metals, potentially leading to new methods for preventing corrosion and remediating metallic pollutants.
Researchers at Lehigh University discovered that the milky band on cloudy wineglasses is actually a network of microscopic scratches created during glass manufacturing. Repeated washings in the dishwasher can cause these cracks to spread and scatter light, giving the bowl a corroded appearance.
Plant pathologists and experts will discuss Soybean Rust's potential impact on US agriculture, citing significant yield losses and costly fungicide control measures. The symposium will focus on disease management tools, resistant breeding programs, detection methods, and a new USDA Action Plan.
CWRU researchers find that polysilicon's fatigue strength is strongly influenced by the ratio of compression to tension stresses, with microcracks originating on the surface. The study uses on-chip test structures to subject specimens to over a billion cycles, shedding light on this critical aspect of MEMS device reliability.
A new NSF grant aims to evaluate the costly impacts of corrosion on water quality, drinking water tastes and odors, and home plumbing. Researchers will focus on economic, consumer, and biochemical dimensions of potable water infrastructure corrosion.
Researchers at Kansas State University have developed a new protective process using phosphates to bond with metal surfaces, preventing corrosion and improving safety. The technology has potential applications in industries such as healthcare, where it could be used to create safer implants.
Stainless steel corrosion is a highly localized and devastating phenomenon that can cause catastrophic industrial accidents. Researchers at Imperial College London have solved the mystery by discovering that tiny sulphur-rich impurity particles 'suck' chromium out of the steel, creating a vulnerable layer that triggers the main attack.
A study shows that deoxygenating ballast water can prevent the introduction of non-native aquatic species, which are responsible for significant environmental problems. This technique also reduces ship corrosion costs, estimated to save nearly $100,000 per year.
Researchers discover widespread hybridization between introduced rusty crayfish and native species, altering ecosystems and leading to population displacement. The study highlights the significant impact of non-native species invasions on biodiversity.
Fractal extremes help predict when surfaces will reach critical points of erosion or accumulation, enabling better material designs and reliable devices. The study uses scaling math and extreme-value statistics to model surface growth and erosion processes, providing a more accurate method for predicting these events.
Penn State researchers studied silica layer formation on modified e-glass, discovering that it breaks up and repolymerizes during corrosion. Understanding this process could lead to stronger fibers and improved lung safety for people exposed to glass fibers.
A study by Richard Weyers predicts that the US bridge transportation system alone will require a trillion dollar investment. The expert warns that epoxy-coated reinforcing steel is prone to corrosion, especially when used in saltwater environments.
A new plastic coating called polyaniline has been discovered that can prevent rust and corrosion in metal structures, lasting up to 10 times longer than traditional coatings. This polymer-based coating reacts with iron and steel to create an organic metal that halts corrosion.
Researchers at the University of Illinois have developed visual inspection procedures to assess corrosion damage in deck beams, evaluate the remaining service life of bridges, and identify potential safety risks. The new standards aim to improve public safety by reducing the need for premature bridge replacements.
Researchers have identified two new grouts for bonded post-tensioning applications, which may increase the service life of bridges up to twice as long. The grouts, with specific water-cement ratios and admixtures, can prevent corrosion in coastal and inland environments.
University of New Orleans researchers have developed a nontoxic corrosion inhibitor for aluminum that inhibits corrosion as much as chromium without hazardous materials. The coating is environmentally acceptable and applies easily, making it safer for workers and the environment.
Researchers found iron oxides in concrete up to an inch away from steel bars cause stress and cracking. Colored rust areas indicate metal loss from the bar, compromising its reinforcing action.
The Navy has developed a new miniature sensor to remotely detect and monitor corrosion in inaccessible areas of ships, aircraft, submarines, and weapons containers. The sensor system reduces maintenance costs by allowing for on-demand inspection and retrieval of corrosion information.
A materials scientist at Johns Hopkins University reveals a rub-free solution to remove stubborn tarnish from silver. The method uses baking soda, water, and aluminum foil to trigger an electrochemical reaction that separates sulfur from the metal, removing tarnish without harming the silver.
A new X-ray device developed by YSI (UK) allows manufacturers to ensure proper protective coatings and layers of paint on car body parts, reducing corrosion. The device takes five seconds to work and is safer than alternative methods, making it suitable for the steel and aluminum industries.
A team of scientists from Idaho National Laboratory developed a system to evaluate what's inside projectiles without opening them. The PINS technology uses neutron spectroscopy to determine the type and amount of chemical agents, enabling safe disposal and preventing accidental destruction of incinerators.
Researchers at U of T's Institute for Aerospace Studies have developed a smart structure on the Leslie Street bridge, lining columns with fibre-optic sensors and wrapping them with lightweight synthetic materials. The sensors precisely measure corrosion and hold the structure together, reducing road maintenance and closures.
A team of researchers at Ohio State University has developed a new type of paint that changes color when it detects corrosion on the metal beneath, revealing tiny pockets of damage as shallow as 15 micrometers. This innovative material could help maintenance crews identify and address corrosion issues earlier, reducing the need for cos...
A laboratory study by Berkeley Lab's researchers reveals that green rust can chemically react with toxic selenium, converting it to a safer elemental form. This finding offers a possible new approach to addressing selenium contamination in soils and sediments.
Researchers at the University of Illinois have devised a way to modify metal surfaces with self-assembled monolayers of an inorganic compound, called silicotungstate. The resulting films exhibit superior stability and mechanical properties, making them suitable for corrosion inhibition and catalysis.