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Novel high-entropy alloys reduce search time to 13,000-fold using expert cuckoo search

Novel high-entropy alloys reduce search time to 13,000-fold using expert cuckoo search

According to scientists at Iowa State University and Leh University, a major route for computational design of high-entropy alloys has been removed. Engineers from the Ames Lab and Leh University’s Department of Mechanical Engineering and Mechanics have developed a process that reduces the search time used for predictions to 13,000-fold. Credit: AIIMS Laboratory, US Department of Energy

According to scientists at Iowa State University and Leh University, a major route for computational design of high-entropy alloys has been removed. Engineers from the Ames Lab and Leh University’s Department of Mechanical Engineering and Mechanics have developed a process that reduces the search time used for predictions to 13,000-fold.

According to Ganesh Balasubramanian, an associate professor at Leh, the team’s research goal was to accelerate computational modeling of complex . The tools available for the random distribution of atoms in material simulation models, they say, have been used for many over many years, and are limited in their accessibility for rapid model generation.

Balasubramaniam states that apart from being resource intensive and away from exhaustion, the time period required to produce robust models for materials simulation is also widespread with supercomputing advances. The team has now overcome this hurdle by developing a hybrid version of the algorithm called cuckoo discovery, inspired by the evolutionary strategy of cuckoo birds.

Balasubramaniam says, “The speed up to the time of the solution was not surprising, but the reduction in factor by 13,000-fold over time was shocking.” “What about a day to complete, now can be done in seconds. This device can accelerate model generation, but also enables the creation of naveenbharatically recoverable systems that are now comparable to experimental samples Can be straight. “

The research has been described in a paper published Nature computational science Which is called “accelerated computational modeling and design of high-entropy alloys”. In addition to Balasubramanian, the authors include: Duane D. Johnson, Faculty of Engineering at Iowa State University and Faculty Scientist at AIIMS Laboratory, as well as Rahul Singh, Ayush Sharma and Prashant Singh.

High-entropy alloys are alloys that are formed by mixing a similar or relatively large proportion of five or more elements. Balasubramanian works exclusively with multi-core element alloys, a new class of materials and a superset of high-entropy alloys that are alloys formed by combining significant and varying proportions of multiple elements. These are different from traditional alloys such as steel, which is mostly made of iron. Preliminary studies have shown that multi-core element alloys have superior mechanical strength and hardness, making them ideal as a protective coating on components such as turbine blades, medical implants, ship surfaces, and aerospace parts.

Balasubramanian says, “Our work on this was aimed at optimizing the design of the alloy and because of the results, we hope it will transform design practices into materials for the better.”

There are many areas that use optimization such as stock market, commerce and engineering system design. Developed using materials simulations as a test, Balasuberian says, this computational tool is applicable to any area of ​​work required for optimization.


The team speculates to discover new high-entropy alloys


more information:
“Computational Modeling and Design of High Entropy Alloys” Nature computational science, DOI: 10.1038 / s43588-020-00006-7

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Leh University


Quotes: Experts reduce search time to 13,000-fold for novel high-entropy mixtures using Kukku search (2021, 14 January). Retrieved January 14, 2021, from https://naveenbharat.com/news/2021-01-experts-entigh-entropy-alloys-. fold-cuckoo.html

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