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Home > Press > Islands without structure inside metal alloys could lead to tougher materials: These high-entropy alloys could lead to better technologies in transportation, energy and denfense
Proposed hierarchical deformation mechanism paradigm for the equi- atomic CrCoNi-based HEAs subjected to increasing degrees of deformation. Elastic deformation, dislocation-mediated plasticity, twinning-induced plasticity, TRIP, and finally solid-state amorphization. Triggering the next mechanism re- quires the generation of additional defects, i.e., dislocations and/or point defects (vacancies). These multiple mechanisms can interact, leading to a synergy of strengthening processes and a resulting highly complex microstructure.
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University of California San Diego
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IMAGE: Proposed hierarchical deformation mechanism paradigm for the equi- atomic CrCoNi-based HEAs subjected to increasing degrees of deformation. Elastic deformation, dislocation-mediated plasticity, twinning-induced plasticity, TRIP, and finally solid-state amorphization. Triggering the. view more
Credit: University of California San Diego
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.
The team, which includes researchers from the University of California San Diego and Berkeley, as well as Carnegie Mellon University and University of Oxford, details their findings in the Jan. 29 issue of