Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p)
Directed energy deposition (DED-LB-p) is used for the production of large components due to the high deposition rates. The large number of process parameters and printing strategies makes it difficult to optimize this process to achieve the optimal properties. Intensive post-processing is still the...
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MDPI AG
2024-09-01
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| author | Florian Scherm Haneen Daoud Uwe Glatzel |
| author_facet | Florian Scherm Haneen Daoud Uwe Glatzel |
| author_sort | Florian Scherm |
| collection | DOAJ |
| description | Directed energy deposition (DED-LB-p) is used for the production of large components due to the high deposition rates. The large number of process parameters and printing strategies makes it difficult to optimize this process to achieve the optimal properties. Intensive post-processing is still the main obstacle to the widespread use of this process. In this work, the influence of different printing strategies and process parameters on the microstructural and tensile mechanical performance at room temperature is investigated. The porosity is measured in both printing directions. The grain orientation and size are analyzed by EBSD. A very low porosity of less than 0.4% is found in all the printed samples. The samples printed with the optimized offset printing strategy show a significant improvement in tensile strength of 1000 MPa without heat treatment compared to the other processing routes. |
| format | Article |
| id | doaj-art-baf415d733ff4ccda42bc2a869e3dd69 |
| institution | OA Journals |
| issn | 2075-4701 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-baf415d733ff4ccda42bc2a869e3dd692025-08-20T01:55:41ZengMDPI AGMetals2075-47012024-09-01149104110.3390/met14091041Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p)Florian Scherm0Haneen Daoud1Uwe Glatzel2Metals and Alloys, University of Bayreuth, 95447 Bayreuth, GermanyNeue Materialien Bayreuth GmbH, 95448 Bayreuth, GermanyMetals and Alloys, University of Bayreuth, 95447 Bayreuth, GermanyDirected energy deposition (DED-LB-p) is used for the production of large components due to the high deposition rates. The large number of process parameters and printing strategies makes it difficult to optimize this process to achieve the optimal properties. Intensive post-processing is still the main obstacle to the widespread use of this process. In this work, the influence of different printing strategies and process parameters on the microstructural and tensile mechanical performance at room temperature is investigated. The porosity is measured in both printing directions. The grain orientation and size are analyzed by EBSD. A very low porosity of less than 0.4% is found in all the printed samples. The samples printed with the optimized offset printing strategy show a significant improvement in tensile strength of 1000 MPa without heat treatment compared to the other processing routes.https://www.mdpi.com/2075-4701/14/9/1041additive manufacturingdirected energy depositionmechanical propertieslaser beamnickel-based alloy |
| spellingShingle | Florian Scherm Haneen Daoud Uwe Glatzel Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p) Metals additive manufacturing directed energy deposition mechanical properties laser beam nickel-based alloy |
| title | Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p) |
| title_full | Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p) |
| title_fullStr | Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p) |
| title_full_unstemmed | Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p) |
| title_short | Influence of Printing Strategies on the Microstructure and Mechanical Properties of Additively Manufactured Alloy 625 Using Directed Energy Deposition (DED-LB-p) |
| title_sort | influence of printing strategies on the microstructure and mechanical properties of additively manufactured alloy 625 using directed energy deposition ded lb p |
| topic | additive manufacturing directed energy deposition mechanical properties laser beam nickel-based alloy |
| url | https://www.mdpi.com/2075-4701/14/9/1041 |
| work_keys_str_mv | AT florianscherm influenceofprintingstrategiesonthemicrostructureandmechanicalpropertiesofadditivelymanufacturedalloy625usingdirectedenergydepositiondedlbp AT haneendaoud influenceofprintingstrategiesonthemicrostructureandmechanicalpropertiesofadditivelymanufacturedalloy625usingdirectedenergydepositiondedlbp AT uweglatzel influenceofprintingstrategiesonthemicrostructureandmechanicalpropertiesofadditivelymanufacturedalloy625usingdirectedenergydepositiondedlbp |