Laser-based directed energy deposition of Monel K-500 and Stellite 6 multi-materials
| Autor: | Ze Chen, Zhongji Sun, Yang Qi, Wei Fan, Verner Soh Qun Liang, Sastry Yagnanna Kandukuri, Paulo Jorge Da Silva Bartolo, Kun Zhou |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Virtual and Physical Prototyping, Vol 19, Iss 1 (2024) |
| Druh dokumentu: | article |
| ISSN: | 17452759 1745-2767 1745-2759 |
| DOI: | 10.1080/17452759.2024.2399789 |
| Popis: | Laser-based directed energy deposition (L-DED) offers significant advantages for repairing metal structures, particularly in the marine and offshore industry where corrosion-resistant materials like Monel K-500 (a Ni-Cu alloy) lack strength and wear resistance. This study addresses this issue by producing Monel K-500 with high-strength Stellite 6 (a Co-Cr alloy). Two types of multi-material samples were created using L-DED: interlayered and mixed powder samples. The interlayered samples experienced cracking at the material interface, while the mixed powder samples were crack-free and exhibited improved mechanical properties, with yield strength increasing from 208.3 MPa to 490.2 MPa and ultimate tensile strength from 429.7 MPa to 887.0 MPa compared to single Monel K-500 samples. This research demonstrated the potential of in-situ alloying during the L-DED process to enhance alloy properties and highlighted the challenges of abrupt compositional changes leading to cracking, suggesting mitigation strategies for successful production. |
| Databáze: | Directory of Open Access Journals |
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