news, journals and articles from all over the world.
Researchers studied stress effects in novel “superalloys” made from two 3D-printed high-strength, high-heat resistant metals. The study found that heat treatments reduce stress created in the materials during manufacturing. It also found that stresses are more likely to be caused by certain manufacturing parameters than they are by the metal’s chemical composition.
A discovery that uncovered the surprising way atoms arrange themselves and find their preferred neighbors in multi-principal element alloys (MPEA) could enable engineers to “tune” these unique and useful materials for enhanced performance in specific applications ranging from advanced power plants to aerospace technologies, according to the researchers who made the finding.
A team led by Berkeley Lab has revealed a new metal alloy that resists damage at both hot and cold temperature extremes due to an atomic-level effect called kink bands, making it potentially suitable for demanding applications like more powerful aerospace engines.
At the Colorado School of Mines, Distinguished Professor in Metallurgical and Materials Engineering Amy J. Clarke studies metals manufacturing. She observes how microscopic structures form and how processing conditions can be modified to affect solidification and defect development.
Rice University scientists have discovered a first-of-its-kind material, a 3D crystalline metal in which quantum correlations and the geometry of the crystal structure combine to frustrate the movement of electrons and lock them in place.
Tungsten heavy alloys show promise for nuclear fusion energy development, according to new research conducted at PNNL.
A study led by Stony Brook University sheds light on the connection between the corrosion behavior and underlying materials structure in laser additively manufactured 316L stainless steel – a corrosion resistant metal. The findings may help to map pathways for engineering an even better printed alloy.
Scientists at Oak Ridge National Laboratory and the University of Tennessee, Knoxville, have found a way to simultaneously increase the strength and ductility of an alloy by introducing tiny precipitates into its matrix and tuning their size and spacing.
An international team of researchers produced islands of amorphous, non-crystalline material inside a class of new metal alloys known as high-entropy alloys. This discovery opens the door to applications in everything from landing gears, to pipelines, to automobiles. The new materials could make these lighter, safer, and more energy efficient.
Scientists at Berkeley Lab have demonstrated a new technique that could improve the performance of atomically thin semiconductors for next-generation electronics such as optoelectronics, thermoelectrics, and sensors.
New research conducted in part at Brookhaven Laboratory may bring a whole new class of chemical elements into a materials science balancing act for designing alloys for aviation and other applications.
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