Investigation of galvanic corrosion between AISI 1018 carbon steel and CFRPs modified with multi-walled carbon nanotubes
Source abstract
Abstract
In this article, we investigate the effect of modified carbon fiber-reinforced polymer (CFRP) composites when galvanically coupled with AISI 1018 carbon steel. Two different resins were used to manufacture the CFRPs: neat epoxy resin, and epoxy resin modified with multi-walled carbon nanotubes (MWCNTs). The specimens of composite (the cathode of the galvanic cell) and metal (the anode of the galvanic cell) were paired and immersed in electrolyte (NaCl solution, 2 % by weight) at 40 °C, to simulate a corrosive environment and accelerate the electrochemical reaction. Results of corrosion rate (CR) and mass loss rate (MR) were obtained, and the electrical resistances of the CFRPs were also measured. This new study shows that the MWCNTs do not have a statistically significant impact on the corrosion and mass loss rate results, and that both types of CFRP composites have statistically the same electrical resistance. Therefore, common methods used in the engineering practice in conventional hybrid CFRP/steel joints and repairs may be sufficient to delay galvanic corrosion, as there is no increased liability.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Smart Materials for Construction · Concrete Corrosion and Durability · Structural Behavior of Reinforced Concrete
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
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