Obtaining Metal-Ceramic Layers by Laser Cladding using Alumina Powder Mixtures
This paper presents a comparative analysis of the metal-ceramic powders mixtures behaviour deposited onto 304 stainless steel (SS304) substrate by laser procedure. Using Inconel 718 (In718) alloy as a matrix material that has a lower melting range in comparison with the austenitic stainless steel, a...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Galati University Press
2024-12-01
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| Series: | Annals of "Dunarea de Jos" University of Galati, Fascicle XII, Welding Equipment and Technology |
| Subjects: | |
| Online Access: | https://www.gup.ugal.ro/ugaljournals/index.php/awet/article/view/7095 |
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| Summary: | This paper presents a comparative analysis of the metal-ceramic powders mixtures behaviour deposited onto 304 stainless steel (SS304) substrate by laser procedure. Using Inconel 718 (In718) alloy as a matrix material that has a lower melting range in comparison with the austenitic stainless steel, a more reduced overheating phenomenon of the cladding layer has been achieved for the same values of the laser deposition parameters. On the other hand, due to the greater fluidity of the In718 alloy, comparing to the SS304 material, an increase of the cladded layer width has been observed at the macro and microstructure analysis. Moreover, an improvement of the adhesion phenomenon between the cladded layer and the substrate was found when spherical alumina (Al2O3) particles have been used. The comparative analysis of the results in case of metal matrix composite (MMC), which was developed by mixing different percentages of Al2O3, SS304 or In718, has revealed that the laser power of 500W and cladding speed of 10mm/s are the optimal process parameters. |
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| ISSN: | 1221-4639 2668-6163 |