首页|Mechanical degradation and corrosion characterization of riveted joints for CFRP/Al stacks in simulated marine environments
Mechanical degradation and corrosion characterization of riveted joints for CFRP/Al stacks in simulated marine environments
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NSTL
Elsevier
? 2022 Elsevier LtdMechanical performance and durability of CFRP/aluminum joints in accelerated corrosion environment have to be considered before designing composite-metallic hybrid structures. In this work, the corrosion behavior and mechanical properties of CFRP/aluminum stacks and riveted joints were evaluated by cyclic salt spray tests to simulate marine environments. The rivet head and aluminum substrate in coupled region experienced severe galvanic corrosion with heavy formation of corrosion products. CFRP laminate suffered substantial matrix swelling and even resin hydrolysis after continuously exposing to moisture environments. Joint strengths fluctuated very slightly while failure displacement gradually increased when interfacial corrosion between CFRP/Al stacks occurred. Corrosion products were identified by several characterization techniques with the corresponding corrosion mechanisms. In general, this work is expected to bring new knowledge to understand corrosion behavior and durability of rivet joints for the CFRP/Al stacks in accelerated corrosion environments and provide experimental results for benchmarking in particular designing CFRP-strengthened aluminum structures.
NSTL
Elsevier
