Damping capacity of Fe-Cr-X high-damping alloys and its dependence on magnetic domain structure

Energy-dissipation characteristics of Fe–13Cr–2.5Mo damping alloy

“…3 shows the variation of logarithmic decrement of the Fe13Cr-2.5Mo alloy. It is in good agreement with those in many previous reports [3,4,6]. As shown in this figure, every curve shows a characteristic peak of logarithmic decrement at a level of vibration strain amplitude.…”

“…High damping Fe-Cr alloys combine high mechanical properties with fairly good damping capabilities [1][2][3][4]. The high damping value in Fe-Cr alloys is attributed mainly to the magneto-mechanical hysteresis effect, which is strongly correlated with microstructure, heat treatment, chemical composition, and mechanical conditions.…”

“…The high damping value in Fe-Cr alloys is attributed mainly to the magneto-mechanical hysteresis effect, which is strongly correlated with microstructure, heat treatment, chemical composition, and mechanical conditions. The damping capacity is usually expressed in terms of internal friction (QÀ1) [1,3], special damping capacity (SDC) [2], as well as logarithmic decrement (d) [4]. However, some confusing conclusions based on the parameters may affect the follow-up studies and commercial applications of the alloys.…”

Vibration damping of high-chromium ferromagnetic steel and its dependence on magnetic domain structure

“…2) at which the damping capacity can get its maximum. A similar phenomenon is also confirmed in literature related to study of Fe-Cr based damping alloys [13,14]. In consideration of the fall of damping capacity at 'over-annealing' temperatures, it can be proposed that the damping capacity be the combined result of domain wall mobility and domain size, both of which depend on the annealing treatment.…”

“…It has been suggested by researchers [13] that the damping capacity of ferromagnetic alloys is also dependent on the magnetic domain structure. Fig.…”