The materials used for this research work included failed samples of helical compression coil spring used for absorber of four wheeled vehicles (FWV). Ten failed samples were cut into sizes (70mm) using a cutting disc, thereafter they were prepared for microscopy by grinding them with abrasive wheel and they were mounted on the Scanning Electron Microscope (SEM) with EDS which also determined the chemical composition. Both metallographic examination and hardness testing were performed on the test samples, the results showed that due to the damage of the protective layer on the surface of the spring, the combination of corrosion and fatigue led to the fracture of the absorber spring.
Keywords: Fractography, absorber springs, failed samples, failure analysis
