Keke Chang, Ming Lou, Kai Xu, Liping Wang
Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials
Technology and Engineering, Chinese Academy of Sciences
EXTENDED ABSTRACT: Cermet combines the high hardness of ceramic phases and the high toughness of binder phases, and are widely used in fields such as undersea exploration, tunnel boring machines, and metalworking. The urgent need to improve the integrated fracture toughness, high-temperature resistance, wear resistance, and corrosion resistance of cermet under the harsh coupled multi-factor environments (high temperature, abrasion, corrosion, impact, etc.) has arisen. This work developed an approach coupling first-principles calculations, molecular dynamics, CALPHAD phase diagram calculations, and key experiments to explore the surface damage mechanisms of cermet materials under the coupling effects of multiple factors. Building on this, new systems were data-driven designed through composition and structure modulation to achieve enhanced key properties.
Keywords:cermet; multi-factor damage; theoretical calculation; materials design
REFERENCES
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[2] Li, S.; Lv, J.; Xu, K.; et al. Scripta Materialia 2022, 219, 114893
[3] Lou, M.; Chang, K.; Xu, K.; et al. Composites Part B: Engineering 2023, 249, 110400
[4] Lou, M.; Chang, K.; Xu, K.; et al. Wear 2023, 530-531, 205021
[5] Tang, T.; Xiao, X.; Xu, K.; et al. International Journal of Refractory Metals and Hard Materials 2023, 110, 106044
Keke Chang, Professor at the Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences (CAS), and Vice Director of CAS Key Laboratory of Marine Materials and Related Technologies. His research interest is coupled damage, theoretical design, and application verification of materials for harsh environments like marine, aviation, and nuclear power. He has published more than 90 papers in journals such as Acta Mater., Sci. Adv., and Scripta Mater., with over 2900 citations. He won the American Ceramic Society's "Spriggs Phase Equilibrium Award" in 2021, the Best Paper - 1st Place of Journal of Materials Informatics in 2022. He is the Principal Investigator of the National Key R&D Program of China, the Excellent Young Scholars Program ofNSFC China. He was also awarded the title of talent program from CAS and Zhejiang province, the leader of the innovation research team of Ningbo City. He got Larry Kaufmann Scholarship from CALPHAD committee, Early Career Investigator from German Research Foundation (DFG) Nachwuchsakademie Program.