On the Damping Capacity of Fe&amp;ndash;Cr Alloys

Masumoto, Hakaru; Sawaya, Showhachi; Hinai, Masakatsu

doi:10.2320/matertrans1960.20.409

Cited by 26 publications

(10 citation statements)

References 11 publications

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“…Consequently, each alloy with a given chemical composition can be optimised for its maximum damping capacity according to heat treatment conditions. Such a reduction of Q z with further annealing has also been observed in other works dealing with the loss capability of ferritic Fe-Cr base alloys [4] and has been attributed to precipitation of o phase and decomposition of a phase. Based on these observations the optimised damping capacity of several alloys was investigated and the results are reported in Fig.3b.…”

Section: Effect Of Heat Treatmentsupporting

confidence: 50%

“…Among the magnetomechanical damping materials, the high chromium ferritic steels have been particularly considered because of their elevated mechanical properties and good corrosion resistance. Masumoto et al [4] studied the damping capacity of a number of iron-chromium alloys in relation with their chemical composition and heat treatment conditions. The values of Q-' increased by high temperature annealing of samples, and showed a maximum versus strain amplitude around y, =lo'.…”

Section: Introductionmentioning

confidence: 99%

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High Damping Capacity Coatings for Surface Vibration Control

et al. 1996

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Abstract. The damping capacity Q-'of a number of Fe-16%Cr alloys containing (0 -6)%A1 and (0 -4)%Mo has been investigated and compared to that of thermally sprayed coatings. The magnetomechanical hysteresis loss was determined using a cantilever method and based on the modal analysis technique of flat beam samples. Heat treatments usually enhanced the loss capability, but further annealing destroyed it drastically. The plasma sprayed coatings was found to require more annealing to exhibit comparable damping capacity to cast alloys of the same chemical composition. The variation ofQ"versus vibration amplitude first increased rapidly, passed through a maximum around& = 104and then declined relatively slowly to its initial values. The structure of magnetic domains were obsemed using the magneto-optical Kerr effect and their modification following to an applied stress or magnetic field was associated with different values of the damping capacity. The irreversible movement of domain walls upon application of an external stress occurred suddenly and abruptly between two pinned positions.

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Section: Effect Of Heat Treatmentsupporting

confidence: 50%

Section: Introductionmentioning

confidence: 99%

High Damping Capacity Coatings for Surface Vibration Control

et al. 1996

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“…After a solution treatment at 1423 K for 10 h followed by water cooling, the alloy was hot-rolled with 15-50% reduction and then cold-drawn from 15 mm to a final nominal diameter of 1 mm. After that, the wire samples and the columnar samples of +10 Â 20 mm 2 cut from the hot-rolled alloy, were heated in vacuum for 1 h at different temperatures from 1073 to 1473 K followed by water cooling [11]. Finally, an IWATSUSY-8232 analyzer was used to measure the initial magnetic permeability and coercivity of the columnar samples, and a reversal torsion instrument was used to test the damping capacity of the wire samples.…”

Section: Experimental Techniquementioning

confidence: 99%

Effect of domain variations on damping capacity of Fe–16Cr–2.5Mo alloy solution annealed at 1373K and 1473K

Wen

2011

Journal of Magnetism and Magnetic Materials

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“…The SB model includes two formulae: low amplitude and high amplitude (at the position of maximum damping). The latter formula has been widely used to describe MMHD of ferromagnetic materials [1][2][3][4][9][10] . In the present study, the low-amplitude formula is used to describe and discuss the damping capacity of the Fe-Al alloys.…”

Section: Introductionmentioning

confidence: 99%

“…Masumoto et al10 studied the damping capacity of forged Fe-Cr alloys and Fe-15%Cr alloy heated at 1200 o C for 1 hour followed by slow cooling (5 o C/min.). Azcoïtia et al 2 studied the effect of Al and Mo additions on the damping capacity of Fe-Cr alloys.…”

mentioning

confidence: 99%

<title>Magnetomechanical hysteresis damping in Fe-Al alloys</title>

Zheng¹,

Shen²,

Jiang

et al. 2005

SPIE Proceedings

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The magnetomechanical hysteresis damping of Fe-Al alloys has been investigated using a computer-controlled automatic inverted torsion pendulum. It has been shown that Al content and heat treatment have a significant effect on the magnetomechanical hysteresis damping of the alloys. The Fe-10.5 (at.%)Al alloy has an optimal damping capacity after it was air-cooled from 900 o C and the Fe-Al alloys with 29(at.)%Al and 38(at.)%Al exhibit rather low damping capacity after undergoing the same heat treatment because of decreasing magnetism. The water-quenched or as-cast specimens cannot form high damping due to high internal stress. An appropriate heating temperature in heat treatments is essential to obtain high damping.

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On the Damping Capacity of Fe–Cr Alloys

Cited by 26 publications

References 11 publications

High Damping Capacity Coatings for Surface Vibration Control

High Damping Capacity Coatings for Surface Vibration Control

Effect of domain variations on damping capacity of Fe–16Cr–2.5Mo alloy solution annealed at 1373K and 1473K

<title>Magnetomechanical hysteresis damping in Fe-Al alloys</title>

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