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Corrosion Damage Factors

Some of the factors leading to corrosion damage can be reproduced relatively easily, by creating a situation favorable to their occurrence. However, other factors depend entirely on the development of local defects that often become visible only after long and highly variable periods of exposure, such as the effects caused by the neutral salt spray test commonly known as ASTM B117 (Method for Salt Spray Fog Testing). When an experiment or test is planned, many factors have to be considered. The following list enumerates some of the most standard considerations for the design of a test program:

With such a long list of questions and the continuously increasing number of testing methods, it is important to simplify the design of test plans by adopting a testing strategy relating requirements with the main test parameters. The decision tree presented here has been developed to facilitate the selection of tests designed to verify the susceptibility of steels to various forms of stress corrosion cracking (SCC).