Metastability Engineering in Refractory Multi-Principal Element Alloys

Project Personnel

Chanho Lee

Principal Investigator

Auburn University

Shuozhi Xu

Co-PI

University of Oklahoma

Xin Wang

Co-PI

University of Alabama

Yifan Zhang

Co-PI

Los Alamos National Laboratory

Hyunseok Oh

Co-PI

University of Wisconsin–Madison

Anirban Patra

Co-PI

Indian Institute of Technology Bombay

Funding Divisions

Department of Science & Technology, India (DST), Division Of Materials Research (DMR), Division of Civil, Mechanical and Manufacturing Innovation (CMMI)

International Partners

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Department of Science & Technology, Govt. of India (DST)

This Designing Materials to Revolutionize and Engineer our Future (DMREF) joint NSF-Department of Science and Technology of India (NSF-DST) project aims to establish a transformative framework for the development of structural alloys that simultaneously achieve high strength at high temperatures and enhanced ductility at room temperature.

The research focuses on a relatively new class of metallic materials known as refractory multi-principal element alloys (RMPEAs), which are recognized for their high-temperature strength but typically suffer from limited plasticity under ambient conditions. The team will develop the new alloy design paradigm through a concept called “metastability engineering,” which activates novel nano-scale deformation mechanisms by controlling dislocation dynamics and phase stability.

The research integrates combinatorial synthesis, advanced in-situ experiments, atomistic and mesoscale simulations, and machine learning (ML)-guided discovery. The resulting framework will enable accelerated design of high-performance RMPEAs across broad temperature ranges. In parallel, the project will contribute to training a new generation of materials scientists in experimental, computational, and data-driven methods, while supporting outreach and international collaboration through partnerships with five US universities and Indian Institute of Technology Bombay.

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Any opinions, findings, and conclusions or recommendations expressed on this website are those of the participants and do not necessarily reflect the views of the National Science Foundation or the participating institutions. This site is maintained collaboratively by principal investigators with Designing Materials to Revolutionize and Engineer our Future awards, independent of the NSF.

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