Abstract
We perform the experimental investigation of the influence of hydrogen sulfide on the signals of magnetoelastic acoustic emission (MAE). The action of hydrogen-sulfide media on the parameters of МАЕ signals of reversely magnetized specimens of 15 steel and 2 steel after holding in these media for 173 h at room temperature is investigated. The degraded structure of the material causes a decrease in the mobility of non-180° domain walls because the number of their pinning centers increases and, as a result, the sum of amplitudes of the MAE signals in damaged specimens decreases.
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