Interfacial Characteristics and Mechanical Performance of IN718/CuSn10 Fabricated by Laser Powder Bed Fusion
To address the critical applications of heterogeneous structures involving nickel-based superalloys (IN718) and copper alloys (CuSn10) under extreme operating conditions, and to address the limitations of traditional joining techniques in terms of interfacial brittleness and geometric constraints, t...
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| Language: | English |
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MDPI AG
2025-04-01
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| Online Access: | https://www.mdpi.com/2073-4352/15/4/344 |
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| author | Xiao Yang Guangsai Zou Zheng Wang Xinze He Mina Zhang Jingyu Xu |
| author_facet | Xiao Yang Guangsai Zou Zheng Wang Xinze He Mina Zhang Jingyu Xu |
| author_sort | Xiao Yang |
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| description | To address the critical applications of heterogeneous structures involving nickel-based superalloys (IN718) and copper alloys (CuSn10) under extreme operating conditions, and to address the limitations of traditional joining techniques in terms of interfacial brittleness and geometric constraints, this study employs Laser Powder Bed Fusion (LPBF) technology, specifically multi-material LPBF (MM-LPBF). By precisely melting IN718 and CuSn10 powders layer by layer, the study directly fabricates multi-material IN718/CuSn10 joint specimens, thereby simplifying the complexity of traditional joining processes. The research systematically investigates the interfacial microstructure and mechanical property evolution laws and underlying mechanisms. It reveals that sufficient element diffusion and hardness gradients are present at the IN718/CuSn10 interface, indicating good metallurgical bonding. However, due to significant differences in thermophysical properties, cracks inevitably appear at the interface. Mechanical property tests indicate that the strength of the IN718/CuSn10 joint specimens falls between that of IN718 and CuSn10, but with lower elongation, and fractures primarily occur at the interface. This research provides theoretical support for establishing a process database for LPBF formed of nickel–copper heterogeneous materials, advancing the manufacturing technology of aerospace multi-material components. |
| format | Article |
| id | doaj-art-103d2149edfc4d5fb85011ef2f7af22f |
| institution | OA Journals |
| issn | 2073-4352 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Crystals |
| spelling | doaj-art-103d2149edfc4d5fb85011ef2f7af22f2025-08-20T02:28:33ZengMDPI AGCrystals2073-43522025-04-0115434410.3390/cryst15040344Interfacial Characteristics and Mechanical Performance of IN718/CuSn10 Fabricated by Laser Powder Bed FusionXiao Yang0Guangsai Zou1Zheng Wang2Xinze He3Mina Zhang4Jingyu Xu5Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaTo address the critical applications of heterogeneous structures involving nickel-based superalloys (IN718) and copper alloys (CuSn10) under extreme operating conditions, and to address the limitations of traditional joining techniques in terms of interfacial brittleness and geometric constraints, this study employs Laser Powder Bed Fusion (LPBF) technology, specifically multi-material LPBF (MM-LPBF). By precisely melting IN718 and CuSn10 powders layer by layer, the study directly fabricates multi-material IN718/CuSn10 joint specimens, thereby simplifying the complexity of traditional joining processes. The research systematically investigates the interfacial microstructure and mechanical property evolution laws and underlying mechanisms. It reveals that sufficient element diffusion and hardness gradients are present at the IN718/CuSn10 interface, indicating good metallurgical bonding. However, due to significant differences in thermophysical properties, cracks inevitably appear at the interface. Mechanical property tests indicate that the strength of the IN718/CuSn10 joint specimens falls between that of IN718 and CuSn10, but with lower elongation, and fractures primarily occur at the interface. This research provides theoretical support for establishing a process database for LPBF formed of nickel–copper heterogeneous materials, advancing the manufacturing technology of aerospace multi-material components.https://www.mdpi.com/2073-4352/15/4/344IN718CuSn10multi-material laser powder bed fusionmicrostructuremechanical property |
| spellingShingle | Xiao Yang Guangsai Zou Zheng Wang Xinze He Mina Zhang Jingyu Xu Interfacial Characteristics and Mechanical Performance of IN718/CuSn10 Fabricated by Laser Powder Bed Fusion Crystals IN718 CuSn10 multi-material laser powder bed fusion microstructure mechanical property |
| title | Interfacial Characteristics and Mechanical Performance of IN718/CuSn10 Fabricated by Laser Powder Bed Fusion |
| title_full | Interfacial Characteristics and Mechanical Performance of IN718/CuSn10 Fabricated by Laser Powder Bed Fusion |
| title_fullStr | Interfacial Characteristics and Mechanical Performance of IN718/CuSn10 Fabricated by Laser Powder Bed Fusion |
| title_full_unstemmed | Interfacial Characteristics and Mechanical Performance of IN718/CuSn10 Fabricated by Laser Powder Bed Fusion |
| title_short | Interfacial Characteristics and Mechanical Performance of IN718/CuSn10 Fabricated by Laser Powder Bed Fusion |
| title_sort | interfacial characteristics and mechanical performance of in718 cusn10 fabricated by laser powder bed fusion |
| topic | IN718 CuSn10 multi-material laser powder bed fusion microstructure mechanical property |
| url | https://www.mdpi.com/2073-4352/15/4/344 |
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