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We have measured the internal friction and the dynamic modulus of an Fe–38at.% Al alloy using a forced torsion pendulum working between 10 −3 and 10Hz. The measurements have been carried out as a function of temperature (from room temperature to 1200K) and as a function of frequency. Two peaks have been observed in the internal friction spectra, at about 780 and 1100K, which are largely superposed...
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