Optimization of Direct Laser Deposition of a Martensitic Steel Powder (Metco 42C) on 42CrMo4 Steel
In this study, the deposition of martensitic stainless-steel (Metco 42C) powder on 42CrMo4 structural steel by direct laser deposition (DLD) was investigated. Clads were produced by varying the laser power, scanning speed, feed rate, and preheating. The effect of these processing variables on the mi...
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MDPI AG
2021-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/4/672 |
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doaj-99a79d6ecc794c709c66c4eb1397687b2021-04-20T23:05:15ZengMDPI AGMetals2075-47012021-04-011167267210.3390/met11040672Optimization of Direct Laser Deposition of a Martensitic Steel Powder (Metco 42C) on 42CrMo4 SteelAndré A. Ferreira0Roya Darabi1João P. Sousa2João M. Cruz3Ana R. Reis4Manuel F. Vieira5Faculty of Engineering of the University of Porto, 4200-465 Porto, PortugalFaculty of Engineering of the University of Porto, 4200-465 Porto, PortugalLAETA/INEGI—Institute of Science and Innovation in Mechanical and Industrial Engineering 4200-465 Porto, PortugalSERMEC-Group, 4425-348 Folgosa-Maia, PortugalFaculty of Engineering of the University of Porto, 4200-465 Porto, PortugalFaculty of Engineering of the University of Porto, 4200-465 Porto, PortugalIn this study, the deposition of martensitic stainless-steel (Metco 42C) powder on 42CrMo4 structural steel by direct laser deposition (DLD) was investigated. Clads were produced by varying the laser power, scanning speed, feed rate, and preheating. The effect of these processing variables on the microstructure and microhardness of the clads was analyzed, as well as their soundness, yield (measured by dilution), and geometric characteristics (height, width, and depth). The complex interaction of the evaluated processing variables forced the application of complex parameters to systematize their effect on the clads. A genetic optimization algorithm was performed to determine the processing conditions warranting high-quality clads, that is, sound clads, metallurgically bonded to the substrate with required deposition yield.https://www.mdpi.com/2075-4701/11/4/672direct laser depositionmicrostructureEBSDmartensitic stainless steelpreheatingoptimization |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
André A. Ferreira Roya Darabi João P. Sousa João M. Cruz Ana R. Reis Manuel F. Vieira |
| spellingShingle |
André A. Ferreira Roya Darabi João P. Sousa João M. Cruz Ana R. Reis Manuel F. Vieira Optimization of Direct Laser Deposition of a Martensitic Steel Powder (Metco 42C) on 42CrMo4 Steel Metals direct laser deposition microstructure EBSD martensitic stainless steel preheating optimization |
| author_facet |
André A. Ferreira Roya Darabi João P. Sousa João M. Cruz Ana R. Reis Manuel F. Vieira |
| author_sort |
André A. Ferreira |
| title |
Optimization of Direct Laser Deposition of a Martensitic Steel Powder (Metco 42C) on 42CrMo4 Steel |
| title_short |
Optimization of Direct Laser Deposition of a Martensitic Steel Powder (Metco 42C) on 42CrMo4 Steel |
| title_full |
Optimization of Direct Laser Deposition of a Martensitic Steel Powder (Metco 42C) on 42CrMo4 Steel |
| title_fullStr |
Optimization of Direct Laser Deposition of a Martensitic Steel Powder (Metco 42C) on 42CrMo4 Steel |
| title_full_unstemmed |
Optimization of Direct Laser Deposition of a Martensitic Steel Powder (Metco 42C) on 42CrMo4 Steel |
| title_sort |
optimization of direct laser deposition of a martensitic steel powder (metco 42c) on 42crmo4 steel |
| publisher |
MDPI AG |
| series |
Metals |
| issn |
2075-4701 |
| publishDate |
2021-04-01 |
| description |
In this study, the deposition of martensitic stainless-steel (Metco 42C) powder on 42CrMo4 structural steel by direct laser deposition (DLD) was investigated. Clads were produced by varying the laser power, scanning speed, feed rate, and preheating. The effect of these processing variables on the microstructure and microhardness of the clads was analyzed, as well as their soundness, yield (measured by dilution), and geometric characteristics (height, width, and depth). The complex interaction of the evaluated processing variables forced the application of complex parameters to systematize their effect on the clads. A genetic optimization algorithm was performed to determine the processing conditions warranting high-quality clads, that is, sound clads, metallurgically bonded to the substrate with required deposition yield. |
| topic |
direct laser deposition microstructure EBSD martensitic stainless steel preheating optimization |
| url |
https://www.mdpi.com/2075-4701/11/4/672 |
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