Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6
Carbon fiber-reinforced thermoplastics (CFRTPs) and lightweight metals are widely used in multi-material structures owing to their high strength and excellent corrosion resistance, thus stimulating research on various heat-assisted techniques to join them. Currently, the isothermal-pressing process...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423010086 |
| _version_ | 1797798733144915968 |
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| author | Weihao Li Peihao Geng Qian Wang Ninshu Ma Shuaijie Zhao Chuantong Chen |
| author_facet | Weihao Li Peihao Geng Qian Wang Ninshu Ma Shuaijie Zhao Chuantong Chen |
| author_sort | Weihao Li |
| collection | DOAJ |
| description | Carbon fiber-reinforced thermoplastics (CFRTPs) and lightweight metals are widely used in multi-material structures owing to their high strength and excellent corrosion resistance, thus stimulating research on various heat-assisted techniques to join them. Currently, the isothermal-pressing process has been developed to realize sound interface joining between CFRTP and Al alloy under relatively uniform thermal conditions. However, a quantitative investigation of the interaction between thermal conditions, chemistry reactions, and joining strength is still lacking. This current investigation analyzed chemical reaction state and resultant bonded strength of isothermal-pressing joined interface of silanized 5052 Al alloy and carbon fiber-reinforced polyamide-6 (CF/PA6) under various thermal conditions. X-ray photoelectron spectroscopy and Raman scattering analysis showed the increasing consumption of epoxy groups on silanized 5052 Al alloy side with the increase in joining temperature and residence time. This suggested higher temperatures and sufficient high-temperature duration times could efficiently promote the interface chemical reaction, increasing interface bonding strength. As the joining temperature or residence time increased, the fracture location gradually shifted from the silane coupling layer/re-solidified resin interface to the re-solidified resin close to interface, and even it directly passed through CF/PA6 along the thickness direction. Under the current adopted conditions, a critical high-temperature duration time of ∼6.0 s at least was recommended by optimizing the joining time to achieve high-strength joining between 5052 Al alloy and CF/PA6. The findings will guide optimizing the joining conditions in heat-assisted joining processes of Al/CFRTP hybrid structures. |
| first_indexed | 2024-03-13T04:08:16Z |
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| id | doaj.art-5aecec6d949d4c96afc2cc51e87d402a |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:08:16Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-5aecec6d949d4c96afc2cc51e87d402a2023-06-21T06:57:32ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012480358052Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6Weihao Li0Peihao Geng1Qian Wang2Ninshu Ma3Shuaijie Zhao4Chuantong Chen5Joining and Welding Research Joining, Osaka University, Osaka, 567-0047, Japan; Graduate School of Engineering, Osaka University, Osaka 567-0047, JapanJoining and Welding Research Joining, Osaka University, Osaka, 567-0047, Japan; Corresponding author.Joining and Welding Research Joining, Osaka University, Osaka, 567-0047, JapanJoining and Welding Research Joining, Osaka University, Osaka, 567-0047, Japan; Corresponding author.Institute of Scientific and Industrial Research, Osaka University, Osaka 567-0047, JapanInstitute of Scientific and Industrial Research, Osaka University, Osaka 567-0047, JapanCarbon fiber-reinforced thermoplastics (CFRTPs) and lightweight metals are widely used in multi-material structures owing to their high strength and excellent corrosion resistance, thus stimulating research on various heat-assisted techniques to join them. Currently, the isothermal-pressing process has been developed to realize sound interface joining between CFRTP and Al alloy under relatively uniform thermal conditions. However, a quantitative investigation of the interaction between thermal conditions, chemistry reactions, and joining strength is still lacking. This current investigation analyzed chemical reaction state and resultant bonded strength of isothermal-pressing joined interface of silanized 5052 Al alloy and carbon fiber-reinforced polyamide-6 (CF/PA6) under various thermal conditions. X-ray photoelectron spectroscopy and Raman scattering analysis showed the increasing consumption of epoxy groups on silanized 5052 Al alloy side with the increase in joining temperature and residence time. This suggested higher temperatures and sufficient high-temperature duration times could efficiently promote the interface chemical reaction, increasing interface bonding strength. As the joining temperature or residence time increased, the fracture location gradually shifted from the silane coupling layer/re-solidified resin interface to the re-solidified resin close to interface, and even it directly passed through CF/PA6 along the thickness direction. Under the current adopted conditions, a critical high-temperature duration time of ∼6.0 s at least was recommended by optimizing the joining time to achieve high-strength joining between 5052 Al alloy and CF/PA6. The findings will guide optimizing the joining conditions in heat-assisted joining processes of Al/CFRTP hybrid structures.http://www.sciencedirect.com/science/article/pii/S2238785423010086Isothermal-pressing joiningAl/CFRTPChemical bondsThermal conditionFracture behavior |
| spellingShingle | Weihao Li Peihao Geng Qian Wang Ninshu Ma Shuaijie Zhao Chuantong Chen Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6 Journal of Materials Research and Technology Isothermal-pressing joining Al/CFRTP Chemical bonds Thermal condition Fracture behavior |
| title | Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6 |
| title_full | Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6 |
| title_fullStr | Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6 |
| title_full_unstemmed | Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6 |
| title_short | Effect of thermal condition on isothermal-pressing joined strength of silanized Al alloy/carbon fiber-reinforced polyamide-6 |
| title_sort | effect of thermal condition on isothermal pressing joined strength of silanized al alloy carbon fiber reinforced polyamide 6 |
| topic | Isothermal-pressing joining Al/CFRTP Chemical bonds Thermal condition Fracture behavior |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423010086 |
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