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A novel strategy for preparation of ZrB2–SiC self-transpiration cooling coating by dilution effect of high speed laser cladding.
- Source :
-
Ceramics International . May2024, Vol. 50 Issue 10, p18075-18079. 5p. - Publication Year :
- 2024
-
Abstract
- An ablation resistant coating with self-transpiration cooling effect was prepared on the surface of aluminum alloy by dilution effect of high speed laser cladding. The coatings mainly contain ablation resistant phases ZrB 2 and SiC, and low-melting phases Al and Al 3.21 Si 0.47. The ablation property of coatings was investigated at different heat fluxes (35.39, 70.77, 106.16, 141.54) MW⸱m−2. The mass ablation rate increased gradually, and the morphology of ablation region changed significantly with the increased heat flux. The self-transpiration cooling effect of coatings was studied by phase, morphology, and element distribution of ablation region. The self-transpiration cooling effect weakened the oxidation behavior of ZrB 2 and SiC at heat fluxes of 35.39 and 70.77 MW⸱m−2 and protected the coating from being exhausted when the heat fluxes were 106.16 and 141.54 MW⸱m−2. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HEAT flux
*SURFACE coatings
*DILUTION
*LASERS
*ALUMINUM alloys
Subjects
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 50
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 176436556
- Full Text :
- https://doi.org/10.1016/j.ceramint.2024.02.263