Abstract:The internal friction behaviors of B2 FeAl alloys were examined to understand the correlation between the ordering and the movement of the atomic defects. A new internal friction peak was found at around 540 °C and 570 °C in the oil-quenched Fe 57 Al 43 and Fe 47 Al 53 alloys, respectively, while in the furnacecooled specimens, the peak disappeared. The peak has the typical phase transition characters, and it is suggested that the peak probably originates from the elevation of the degree of order, which is cau… Show more
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