TY - JOUR
T1 - An effective micro-arc oxidation (MAO) treatment on aluminum alloy for stronger bonding joint with carbon fiber composites
AU - Zuo, Shihao
AU - Cheng, Fei
AU - Yang, Guangming
AU - Li, Jiangzhou
AU - Deng, Yongjun
AU - Gou, Guangjun
AU - Cui, Xuejun
AU - Hu, Yunsen
AU - Hu, Xiaozhi
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundations of China (Grant No. 52102115), the Natural Science Foundations of Sichuan Province (Grant No. 2023NSFSC0961), the Natural Science Foundation of Sichuan Province (Grant No. 2022NSFSC0330) and the Overseas High-end Talent Introduction Project of Sichuan Province (Grant No. 2023JDGD0013). The authors thank Shiyanjia Lab (www.shiyanjia.com) for the SEM and AFM analysis. Authors also wish to thank the editor and reviewers for kindly giving revision suggestions.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2024/2
Y1 - 2024/2
N2 - The micro-arc oxidation (MAO) treatment was used in this study to modify aluminum (Al) alloys to improve bond strength with carbon fiber reinforced polymer (CFRP). Various porous surfaces of Al alloy with better hardness, roughness and wetting were created. Void defects were reduced via using resin pre-coating (RPC) technique to guide high-viscosity epoxy into the holes, CNTs fiber bridging was constructed to improve bonding interface and epoxy adhesive layer. Combined treatments of “Na2SiO3 + KOH solution” MAO, RPC and introducing CNTs on Al alloy surface yielded 21.34 MPa, up to 156.1% increment over base strength. Original de-bonding failure on Al alloy surface was altered into dominant fiber tearing failure of CFRP composites, indicating the reinforced bond strength and stronger adhesive joint. MAO was the first try and proved as a feasible treatment for bond strength improvement, which could provide an alternative to manufacture high-performance Al-CFRP composites in industrial production.
AB - The micro-arc oxidation (MAO) treatment was used in this study to modify aluminum (Al) alloys to improve bond strength with carbon fiber reinforced polymer (CFRP). Various porous surfaces of Al alloy with better hardness, roughness and wetting were created. Void defects were reduced via using resin pre-coating (RPC) technique to guide high-viscosity epoxy into the holes, CNTs fiber bridging was constructed to improve bonding interface and epoxy adhesive layer. Combined treatments of “Na2SiO3 + KOH solution” MAO, RPC and introducing CNTs on Al alloy surface yielded 21.34 MPa, up to 156.1% increment over base strength. Original de-bonding failure on Al alloy surface was altered into dominant fiber tearing failure of CFRP composites, indicating the reinforced bond strength and stronger adhesive joint. MAO was the first try and proved as a feasible treatment for bond strength improvement, which could provide an alternative to manufacture high-performance Al-CFRP composites in industrial production.
KW - Hybrid
KW - Joints/joining
KW - Mechanical properties
KW - Thin films
UR - http://www.scopus.com/inward/record.url?scp=85183577794&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2023.107919
DO - 10.1016/j.compositesa.2023.107919
M3 - Article
AN - SCOPUS:85183577794
SN - 1359-835X
VL - 177
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 107919
ER -