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1 2007

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Research on possibilities of application of nondestructive testing in degradation evaluation of materials used in infrastructure working under the influence of agressive hydrogen environment

Paradowski K., Manaj W., Spychalski L., Zagórski K., Lubińska D., Kukla D., Płowiec J., Kurzydłowski K.J.

Advances in Materials Science

2007

Vol. 7, nr 2(12)

276-283

Widely applied materials, used in construction of installations exposed to influence of hydrogen environment, are low-alloy Cr-Mo steels. Unfavorable effect of hydrogen on metals is described as hydrogen stress corrosion or hydrogen embrittlement. The process, in extreme cases, leads to a significant decrease of utilitarian properties of construction materials. In true conditions, a consequence of hydrogen degradation may be a failure, brought about by a los s of construction's integrity. Usage of modem inspection techniques constituting non-destructive testing methods enables monitoring and evaluation of degradation degree of materials, out of which the equipment was built, in a way that does not effect a change of their properties and utili-tarian functions. The presented in the paper research results, obtained under laboratory conditions, are a base for creation of a non-destructive tests methodology that enables performing inspections in true conditions and allows for a better interpretation of results obtained.