The Effects of Combined Treatments of Laser Engraving, Plasma Spraying and Resin Pre-Coating on Improving the Bonding Strength of Titanium Alloy and Carbon Fiber-Reinforced Polymer
Wenyi Huang,
Fei Cheng,
Shihao Zuo,
Yi Ji,
Guangming Yang,
Jiaxin He,
Sidra Ashfaq,
Yunsen Hu,
Xiaozhi Hu
Affiliations
Wenyi Huang
Engineering Research Center of Biomass Materials, Ministry of Education, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
Fei Cheng
Engineering Research Center of Biomass Materials, Ministry of Education, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
Shihao Zuo
Engineering Research Center of Biomass Materials, Ministry of Education, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
Yi Ji
Engineering Research Center of Biomass Materials, Ministry of Education, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
Guangming Yang
Engineering Research Center of Biomass Materials, Ministry of Education, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
Jiaxin He
Engineering Research Center of Biomass Materials, Ministry of Education, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
Sidra Ashfaq
Engineering Research Center of Biomass Materials, Ministry of Education, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
Yunsen Hu
School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Xiaozhi Hu
School of Mechanical Engineering, University of Western Australia, Perth 6009, Australia
This study focused on effective methods of laser engraving treatment (LET), plasma spraying, and resin pre-coating (RPC) to manufacture the reinforced adhesive joints of titanium alloy and carbon fiber-reinforced polymer (TA-CFRP) composites. The combined treatments contributed to the creation of a better adhesive bonding condition and offer a vertical gap between circular protrusions to form epoxy pins and carbon nanotube (CNT)-reinforced epoxy pins. The bonding strength of the TA-CFRP composite was reinforced by 130.6% via treatments with a twice-engraving unit of 0.8 mm, plasma spraying, and RPC. The original debonding failure on the TA surface was changed into the cohesive failure of the epoxy adhesive and delamination-dominated failure of the CFRP panel. Overall, laser engraving has been confirmed as an effective and controllable treatment method to reinforce the bonding strength of the TA-CFRP joint combined with plasma spraying and RPC. It may be considered as an alternative in industry for manufacturing high-performance metal–CFRP composites.
