Enhanced abrasion resistance of laser cladding Fe-based coatings by addition of MgAl <sub>2</sub> O <sub>4</sub> particles
In this study, MgAl 2 O 4 particles were introduced into Fe-based laser cladding coatings on the surface of the GCr15 steel roller, and the effects of MgAl 2 O 4 content on the phase composition, microstructure, hardness and abrasion resistance of Fe-based coating were systematically investigated. The results showed that the well-bonded Fe-based coatings with the addition of MgAl 2 O 4 particles were successfully prepared by laser cladding. The addition of MgAl 2 O 4 particles promoted the formation of other hard-reinforced phases, such as Fe 3 Al and (Fe, Cr) 7 C 3 , playing an important role in grain refinement. Compared with the Fe-based coating, the hardness and abrasion resistance of Fe-based coatings with 30 wt% MgAl 2 O 4 were evidently enhanced, which is attributed to the more hard-reinforced phase's dispersion strengthening and grain refinement.
Authors
- Tianbin Zhu (ORCID: https://orcid.org/0000-0002-1100-2891)
- Shaobai Sang (ORCID: https://orcid.org/0000-0002-4112-9797)
- Liangxun Li (ORCID: https://orcid.org/0009-0002-2858-2690)
- Yawei Li (ORCID: https://orcid.org/0000-0003-1845-2569)
- Heng Wang (ORCID: https://orcid.org/0009-0008-1739-3871)
Institutions
- Wuhan University of Science and Technology (CN)
Publication Details
- Journal
- Materials Science and Technology
- Published
- 2024-08-23
- DOI
- https://doi.org/10.1177/02670836241277062
- Primary Topic
- High Entropy Alloys Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Hubei Province