Adhesion Strength and Anti-Corrosion Performance of Ceramic Coating on Laser-Textured Aluminum Alloy
Source abstract
Abstract
Laser surface texturing and micro-arc oxidation provide excellent approaches to enhance the adhesion strength and anti-corrosion performance of adhesive bonding interfaces in aluminum alloys, which can be applied in the field of automotive light weighting. Herein, micro-arc oxidation coatings were fabricated on the laser-textured aluminum surface under the voltage of 500 V for various treatment times (5 min, 15 min, 30 min, 60 min). The anti-corrosion performance of ceramic coatings on the laser-textured surface was analyzed using electrochemical measurements. The results of electrochemical measurement indicate that the coating on the sample surface presents two time constants corresponding to a dual-layer structure. The sample grown under 500 V for 60 min exhibits excellent protective performance with a value of 1.3 × 107 ohm·cm2. The adhesion strength of laser-textured ceramic coating is improved compared with the as-received substrate. The sample treated with 500 V for 30 min exhibits the highest bonding strength with a value of 52 MPa. The wider pores and bulges for the sample grown in 60 min would introduce microcracks and consequently reduce the adhesion strength.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · Corrosion Behavior and Inhibition · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Intelligent Manufacturing and Control Engineering, Shandong Institute of Petroleum and Chemical Technology, Shandong 257061, China
Key Laboratory of Mechanical Surface Engineering and Tribology, Shandong Institute of Petroleum and Chemical Technology, Shandong 257061, China
College of Chemical Engineering, China University of Petroleum, Shandong 266580, China
Dongying Pinmo Import and Export Co., Ltd., Shandong 257061, China
Dongying City Infrastructure Pipeline Natural Gas Limited Liability Company, Shandong 257061, China
Funding
Dongying Science and Technology Development Foundation · Shandong Provincial Natural Science Foundation
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