AlCoCrFeNi-NiTi high entropy alloy composites: Microstructure and wear performance
SCIE
SCOPUS
- Title
- AlCoCrFeNi-NiTi high entropy alloy composites: Microstructure and wear performance
- Authors
- Ghanbariha, M.; Farvizi, M.; Ebadzadeh, T.; Samiyan, A. Alizadeh; Kim, H.S.
- Date Issued
- 2022-08
- Publisher
- Elsevier Ltd
- Abstract
- © 2022 Elsevier LtdIn the current research, AlCoCrFeNi–x wt% NiTi (x = 0, 5, and 10) high entropy alloy (HEA) composites were prepared using a combination of mechanical alloying and spark plasma sintering methods. Microstructural studies showed that the introduction of 5 wt% NiTi slightly changed the BCC and FCC fractions of the HEA matrix. However, in the HEA-10NiTi sample, which exhibited increase in the interfacial regions and acceleration of interdiffusion between elements, the (Ni,Al)-rich BCC phase fraction was considerably reduced. According to nano-indentation tests, the NiTi and BCC phases possess higher hardness-to-elastic modulus values that confirm the positive effect of these two phases on tribological behavior. Among the prepared specimens, HEA-5NiTi had the lowest wear rate (0.71 ± 0.01 mm3/N·m). This is attributable to the higher BCC phase fraction and reinforcing effect of the NiTi particles.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/113443
- DOI
- 10.1016/j.mtcomm.2022.103952
- ISSN
- 2352-4928
- Article Type
- Article
- Citation
- Materials Today Communications, vol. 32, 2022-08
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- There are no files associated with this item.
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