Abstract
The present work is based on the analysis of Barkhausen Noise (BN) signals, obtained from a group of samples formed by Fe–1wt % Cu. They were made in Japan with the purpose to simulate possible processes that change the microstructure of pressures vessels of in service nuclear reactors. These vessels are made of a low ferritic steel alloy, with presence of Cu impurities. Twelve samples were made and modified by different thermal and mechanical treatments. The study and analysis of these samples was the objective of this inter-laboratory test (2nd. Round Robin Test) that involved researchers from the entire world.In the present study the processing of BN signals obtained from those samples was done. A detailed study, through the Root Mean Square function (RMS) applied to the BN signals, allowed a deeper and more detailed knowledge. These results were also compared with others previously obtained.
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