Researchers have devised a quantum mechanics-based approach that significantly improves the prediction and enhancement of metal ductility, leading to the development of metals that are so durable they could be considered “unbreakable” for their given application. Credit: SciTechDaily.com
A team of scientists from Ames National Laboratory and Texas A&M University developed a new way to predict metal ductility. This quantum-mechanics-based approach fills a need for an inexpensive, efficient, high-throughput way to predict ductility. The team demonstrated its effectiveness on refractory multi-principal-element alloys.
A typical way to model atoms is with rigid spheres that are symmetrical. However, Singh explained that in real materials, the atoms are different sizes and have shapes. When mixing elements with different-sized atoms, the atoms continually adjust to fit within the fixed space. This behavior creates local atomic distortion.The new analysis incorporates local atomic distortion in determining whether a material is brittle or ductile. It also expands on the capabilities of current approaches.
Source: Tech Daily Report (techdailyreport.net)
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