Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning
The joining methods of Aluminum matrix composites reinforced with SiC particles (SiC<sub>p</sub>/Al MMCs) are a challenge during the manufacturing process due to the significant differences between SiC particles and base aluminum in terms of both physical and chemical properties. Micro-n...
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MDPI AG
2020-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/11/1470 |
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| author | Dechao Qiu Zeng Gao Xianli Ba Zhenjiang Wang Jitai Niu |
| author_facet | Dechao Qiu Zeng Gao Xianli Ba Zhenjiang Wang Jitai Niu |
| author_sort | Dechao Qiu |
| collection | DOAJ |
| description | The joining methods of Aluminum matrix composites reinforced with SiC particles (SiC<sub>p</sub>/Al MMCs) are a challenge during the manufacturing process due to the significant differences between SiC particles and base aluminum in terms of both physical and chemical properties. Micro-nano brazing filler metal Al-17.0Cu-8.0Mg fabricated by melt-spinning technology was employed to deal with the joining problem of 55 vol.% SiC<sub>p</sub>/ZL102 composites in this work. The result indicated that the foil-like brazing filler metal contained uniformed cellular nano grains, with a size less than 200 nm. The solidus and liquidus temperatures of the foil-like brazing filler metal decreased by 4 °C and 7 °C in comparison with the values of the as-cast brazing filler metal due to the nanometer size effect. The maximum joint shear strength of 98.17 MPa achieved with a brazing temperature of 580 °C and holding time of 30 min was applied in vacuum brazing process. The width of the brazing seam became narrower and narrower with increasing brazing temperature owning to the strong interaction between the micro-nano brazing filler metal and 55 vol.% SiC<sub>p</sub>/ZL102 composites. The fracture morphology of the joint made at a brazing temperature of 580 °C was characterized by quasi-cleavage fracture. After brazing, the chemical concentration gradient between the brazing filler metal and base material disappeared. |
| first_indexed | 2024-03-10T15:06:38Z |
| format | Article |
| id | doaj.art-fd5249ae0d6f4b999cedf3e6865389be |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T15:06:38Z |
| publishDate | 2020-11-01 |
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| series | Metals |
| spelling | doaj.art-fd5249ae0d6f4b999cedf3e6865389be2023-11-20T19:43:55ZengMDPI AGMetals2075-47012020-11-011011147010.3390/met10111470Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-SpinningDechao Qiu0Zeng Gao1Xianli Ba2Zhenjiang Wang3Jitai Niu4School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, ChinaSchool of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, ChinaSchool of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, ChinaSchool of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, ChinaSchool of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, ChinaThe joining methods of Aluminum matrix composites reinforced with SiC particles (SiC<sub>p</sub>/Al MMCs) are a challenge during the manufacturing process due to the significant differences between SiC particles and base aluminum in terms of both physical and chemical properties. Micro-nano brazing filler metal Al-17.0Cu-8.0Mg fabricated by melt-spinning technology was employed to deal with the joining problem of 55 vol.% SiC<sub>p</sub>/ZL102 composites in this work. The result indicated that the foil-like brazing filler metal contained uniformed cellular nano grains, with a size less than 200 nm. The solidus and liquidus temperatures of the foil-like brazing filler metal decreased by 4 °C and 7 °C in comparison with the values of the as-cast brazing filler metal due to the nanometer size effect. The maximum joint shear strength of 98.17 MPa achieved with a brazing temperature of 580 °C and holding time of 30 min was applied in vacuum brazing process. The width of the brazing seam became narrower and narrower with increasing brazing temperature owning to the strong interaction between the micro-nano brazing filler metal and 55 vol.% SiC<sub>p</sub>/ZL102 composites. The fracture morphology of the joint made at a brazing temperature of 580 °C was characterized by quasi-cleavage fracture. After brazing, the chemical concentration gradient between the brazing filler metal and base material disappeared.https://www.mdpi.com/2075-4701/10/11/1470SiC<sub>p</sub>/ZL102 compositesmicro-nano brazing filler metalvacuum brazingmicrostructureshear strength |
| spellingShingle | Dechao Qiu Zeng Gao Xianli Ba Zhenjiang Wang Jitai Niu Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning Metals SiC<sub>p</sub>/ZL102 composites micro-nano brazing filler metal vacuum brazing microstructure shear strength |
| title | Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning |
| title_full | Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning |
| title_fullStr | Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning |
| title_full_unstemmed | Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning |
| title_short | Vacuum Brazing of 55 vol.% SiCp/ZL102 Composites Using Micro-Nano Brazing Filler Metal Fabricated by Melt-Spinning |
| title_sort | vacuum brazing of 55 vol sicp zl102 composites using micro nano brazing filler metal fabricated by melt spinning |
| topic | SiC<sub>p</sub>/ZL102 composites micro-nano brazing filler metal vacuum brazing microstructure shear strength |
| url | https://www.mdpi.com/2075-4701/10/11/1470 |
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