Popis: |
Today’s environmental needs require the reduction of the weight of vehicles, thus reducing fuel consumption and associated emissions. For this reason, the use of light alloys is being studied, which, due to their reactivity, must be protected before use. In this work, the effectiveness of a hybrid sol-gel coating doped with various organic environmentally friendly corrosion inhibitors applied to an AA2024 lightweight aluminium alloy is evaluated. Some of the inhibitors tested are pH indicators, acting as both corrosion inhibitors and optical sensors for the surface of the alloy. Samples are subjected to a corrosion test in a simulated saline environment and characterised before and after the test. The experimental results regarding their best inhibitor performance for their potential application in the transport industry are evaluated. Spanish Ministry of Science and Innovation (MICINN) (RTI2018-095856-B-C21) Spanish Ministry of Economic Affairs and Digital Transformation (MINECO) (PID2020-114192RB-C41, PID2019-104717RB-I00, PID2021-122980OB-C51) MCIN for a “Ramón y Cajal” contract (RYC2021-031236-I) 4.432 Q1 JCR 2021 0.548 Q2 SJR 2022 No data IDR 2021 UEM |