Microyielding and damping capacity in magnesium

Watanabe, Hiroyuki; Sawada, Tadaaki; Sasakura, Yasuyoshi; Ikeo, Naoko; Mukai, Toshiji

doi:10.1016/j.scriptamat.2014.06.004

Cited by 29 publications

(5 citation statements)

References 33 publications

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“…It is well known that {1 0 À1 2} tensile twin boundaries in Mg are movable and can shrink and grow even at a stress much lower than the nucleation stress [11][12][13][14]. CRSS for the growth of {1 0 À1 2} twin was found to be $2-3 MPa for AZ31 alloys [6], which is slightly higher but very close to that of the basal slip system (approximately 2 MPa) [15,16]. However, no clear evidence has been provided, 70 and it remains unknown how twins can affect the damping capacity of Mg alloys, and also to what extent the damping capacity can be improved, although Tsai et al [17] time, that twin boundaries enhance the damping capacity of this alloy.…”

mentioning

confidence: 99%

Enhanced damping capacity of magnesium alloys by tensile twin boundaries

Cui

Sun

et al. 2015

Scripta Materialia

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mentioning

confidence: 99%

Enhanced damping capacity of magnesium alloys by tensile twin boundaries

Cui

Sun

et al. 2015

Scripta Materialia

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“…In addition, twinning deformation is considered to be an effective and low-cost method to control the texture characteristics of magnesium alloys [15]. Some researchers have conducted studies on the effect of texture on the damping behaviour of magnesium alloys [3,[14][15][16], and they think that the basal slip is responsible for the damping behaviour of Mg and Mg alloys. They even propose that the stronger the intensity of the basal texture of magnesium and magnesium alloys, the weaker the damping capacity.…”

Section: Introductionmentioning

confidence: 99%

Effect of texture on damping behaviour in ZK60 magnesium alloy

Zhou

Yan

Chen

et al. 2023

Materials Science and Technology

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Effect of texture on the damping capacity of ZK60 magnesium alloy is investigated through compression experiments with a deformation of 10% at room temperature. It is found that both the dislocation networks, twins and the basal texture intensity affect the damping capacity. At the low strain amplitudes, the dislocation networks and twins are dominant and the damping capacity decreases with the increase in the dislocation networks and twins. At the high strain amplitudes, the basal texture intensity is dominant and the damping capacity decreases with the increase in the basal texture intensity. Based on the anisotropy of the damping capacity of the wrought magnesium alloys, this research provides provide a direction for the study of high-strength and high-damping magnesium alloys.

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“…Moreover, those internal structural features that create high damping ability (mobile defects) scale inversely with mechanisms that lead to good mechanical strength (immobile defects). Therefore, in traditional high-damping alloy design concepts, high damping and high strength/ductility are often mutually exclusive (10).…”

Section: Introductionmentioning

confidence: 99%

Snoek-type damping performance in strong and ductile high-entropy alloys

Lei

et al. 2020

Sci. Adv.

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Noise and mechanical vibrations not only cause damage to devices, but also present major public health hazards. High-damping alloys that eliminate noise and mechanical vibrations are therefore required. Yet, low operating temperatures and insufficient strength/ductility ratios in currently available high-damping alloys limit their applicability. Using the concept of high-entropy alloy (HEA), we present a class of high-damping materials. The design is based on refractory HEAs, solid-solutions doped with either 2.0 atomic % oxygen or nitrogen, (Ta0.5Nb0.5HfZrTi)98O2 and (Ta0.5Nb0.5HfZrTi)98N2. Via Snoek relaxation and ordered interstitial complexes mediated strain hardening, the damping capacity of these HEAs is as high as 0.030, and the damping peak reaches up to 800 K. The model HEAs also exhibit a high tensile yield strength of ~1400 MPa combined with a large ductility of ~20%. The high-temperature damping properties, together with superb mechanical properties make these HEAs attractive for applications where noise and vibrations must be reduced.

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Microyielding and damping capacity in magnesium

Cited by 29 publications

References 33 publications

Enhanced damping capacity of magnesium alloys by tensile twin boundaries

Enhanced damping capacity of magnesium alloys by tensile twin boundaries

Effect of texture on damping behaviour in ZK60 magnesium alloy

Snoek-type damping performance in strong and ductile high-entropy alloys

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