© CMS group, MUL

Jiyao Zhang

PhD student
email: jiyao.zhang@stud.unileoben.ac.at

About my project

ordering of HEAs © CMS group, MUL Due to the demands of aerospace development, refractory alloys are highly needed. Refractory high entropy alloys (RHEAs) are expected to be the next generation of refractory alloys because of their outstanding high‑temperature properties. Their phase structures, particularly the random BCC + ordered B2 phases, play a vital role in their performance. To bridge the gap between structural properties and performance, the advanced computational simulations will be utilized. Given the limitations of traditional simulation methods, universal machine learning potentials (uMLIPs) are a powerful tool to model compositionally complex RHEAs. In my project, by using combined computational methods including DFT simulation, MC/MD simulation with uMLIPs, the structural properties, mechanical properties, alloying trends, and thermodynamic properties will be studied in detail to construct a systematic understanding of ordering in RHEAs.

Short bio

10/2024–presentPhD in Computational Materials Science, Montanuniversität Leoben, Austria
Working title: “Ordering phase transformations in high-entropy alloys”
2021–2024MSc in Material Engineering, Shandong University, China
2017–2022BSc in Materials Forming and Control Engineering, Shandong University, China

Research topics

Publications

  1. Q. Gao, Y. Wang, J. Gong, C. Zhou, J. Zhang, X. Liu, J. Tang, P. Liu, X. Chen, D. Chen, W. Lv, K. Prashanth, K. Song: "High-temperature oxidation behaviors of Co-free Cr30Fe30Ni30Al5Ti5 dual-phase multi-component alloys with multi-scale nanoprecipitates". Materials Today Advances, 22, 100482 (2024). DOI: https://doi.org/10.1016/j.mtadv.2024.100482

  2. J. Zhang, Y. Yu, J. Tang, Y. Wang, H. Sun, K. Song, J. Gong, P. Liu, X. Liu, L. Hu, P. Ramasamy, J. Eckert: "Unveiling microstructural evolution and enhanced wear resistance of Co37Cr28Ni31Al2Ti2 multicomponent alloy via high-carbon addition". Wear, 536-537, 205144 (2024). DOI: https://doi.org/10.1016/j.wear.2023.205144

  3. Q. Gao, P. Liu, J. Gong, M. Xie, K. Song, X. Liu, J. Zhang, Y. Wang, J. Das, C. Cao, V. Zadorozhnyy, P. Ramasamy, J. Eckert: "Tailoring microstructures and mechanical properties of lightweight refractory Ti22Sc22Zr22Nb17V17 multi-phase high-entropy alloys by hot extrusion and annealing". Materials Characterization, 202, 113025 (2023). DOI: https://doi.org/10.1016/j.matchar.2023.113025

  4. X. Liu, Z. Kou, R. Qu, W. Song, Y. Gu, C. Zhou, Q. Gao, J. Zhang, C. Cao, K. Song, V. Zadorozhnyy, Z. Zhang, J. Eckert: "Accelerating matrix/boundary precipitations to explore high-strength and high-ductile Co34Cr32Ni27Al3.5Ti3.5 multicomponent alloys through hot extrusion and annealing". Journal of Materials Science & Technology, 143, 62-83 (2023). DOI: https://doi.org/10.1016/j.jmst.2022.08.052