Micromechanical behavior of (CoCrNi)94Al3Ti3 medium-entropy alloy
The micromechanical behavior of (CoCrNi) 94 Al 3 Ti 3 medium-entropy alloy (MEA) with and without Al 2 O 3 nanoparticles was investigated by nanoindentation, microhardness, and microscratch tests. Adding Al 2 O 3 nanoparticles in the (CoCrNi) 94 Al 3 Ti 3 MEA increases elastic modulus, hardness, brittleness, and friction coefficient. The MEAs exhibit indentation-induced pile-up, resulting in the inapplicability of the Oliver & Pharr method. The elastic modulus and indentation hardness were assessed by the work-based approach. Indentation size effect is observed for the MEA, but is absent with the addition of Al 2 O 3 nanoparticles.
Authors
- Ming Liu (ORCID: https://orcid.org/0000-0001-9987-9729)
- Shanhong Wan (ORCID: https://orcid.org/0000-0001-9926-2745)
- Fuqian Yang (ORCID: https://orcid.org/0000-0001-6277-3082)
- Zhitong Xu (ORCID: https://orcid.org/0000-0001-9138-4123)
- Rui Liang (ORCID: https://orcid.org/0000-0002-2573-556X)
- Jinyang Jiang (ORCID: https://orcid.org/0000-0002-0134-9373)
Institutions
- Macau University of Science and Technology (MO)
- University of Kentucky (US)
- Lanzhou Institute of Chemical Physics (CN)
- Southeast University (CN)
- Fuzhou University (CN)
Publication Details
- Journal
- Journal of Materials Research and Technology
- Published
- 2025-06-02
- DOI
- https://doi.org/10.1016/j.jmrt.2025.06.003
- Citations
- 2
- Primary Topic
- High Entropy Alloys Studies
- Type
- article
- Field-Weighted Citation Impact
- 1.43
Funders
- National Natural Science Foundation of China
- Fundo para o Desenvolvimento das Ciências e da Tecnologia
- Foundation for Innovation Groups of Basic Research in Gansu Province