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

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

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.

Designing Materials to Revolutionize and Engineer our Future (DMREF)