Abstract
An internal friction peak due to hydrogen in Fe55Cr45-xNix (x=20–45) and Fe100-xNix (x=35–100) alloys was observed. A gas-equilibration method was employed in order to charge specimens homogeneously with hydrogen. In Fe55Cr45-xNix alloys, the peak height significantly increased as the nickel content increased, whereas in Fe100-xNix alloys the peak height did not show a monotonic change versus the increasing nickel content. In both alloys the peak height depended strongly on the alloy composition.
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