Exfoliation corrosion test specimens

Although the size and shape of the specimen will depend on the purpose of the test, rectangular specimens of the dimensions 2.5 cm by 5 cm by 0.3 cm thick are common. A typical variation is found when a corrosion test requires the specimen to be mechanically stressed as part of the evaluation procedure. It would be normal in this case to use a standard tensile test specimen for the corrosion test. Other examples are the use of disk-shaped specimens for rotational erosion tests, or special configurations for stress corrosion, exfoliation, or crevice tests. 

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