Parent-phase twinning induced ultra-high damping capacity of Mn–20Cu–5Ni–2Fe alloy under directional solidification process

Zhang, Sibin; Tian, Qingchao

doi:10.1016/j.intermet.2021.107343

Cited by 13 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[3,17] Zhang et al prepared Mn-Cu alloy samples with a Bridgmantype directional solidification furnace and confirmed that enhancing the degree of composition segregation leads to an ultrahigh damping performance of Mn-20Cu-5Ni-2Fe alloy. [7] Liu et al prepared a Mn-26Cu-2Ni-2Fe-2Zn-3Al alloy and cast it into a silica-sand mold. [4] They found that the highest nanoscale Mn segregation due to spinodal decomposition in Mn dendrites results in the largest Q À1 at a strain amplitude of 2 Â 10 À4 .…”

Section: Discussionmentioning

confidence: 99%

“…To evaluate the mobility of twin boundaries, the TAE was calculated according to the mechanical spectra at 1 and 5 Hz. From Arrhenius formation, [ 7 ] the TAE value of the samples can be calculated using the peak shift method [ 8 ]

ln \frac{\left(\omega\right)_{2}}{\left(\omega\right)_{1}} = \left(\right. \frac{1}{T_{1}} - \frac{1}{T_{1}} \left.\right) \frac{H}{R}

…”

Section: Methodsmentioning

confidence: 99%

“…[5,6] To evaluate the mobility of twin boundaries, the TAE was calculated according to the mechanical spectra at 1 and 5 Hz. From Arrhenius formation, [7] the TAE value of the samples can be calculated using the peak shift method [8] ln…”

mentioning

confidence: 99%

See 2 more Smart Citations

Amplifying Mn Segregation and Enhancing Damping Capacity via Adding Sn in Mn–44Cu–1.5Al as‐Cast Alloys

Xu,

Guo

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

As a metal functional material, the Mn‐Cu based alloys are regarded to be able to cope with the vibration and noise from machines. In particular, the as‐cast alloys often exhibit an excellent damping capacity, which has been attributed to the Mn segregation in the alloys. In this paper, to amplify the kind of segregation, a trace of Sn was added in as‐cast Mn‐Cu‐Al alloys. The phase structures of the as‐cast Mn‐44Cu‐1.5Al alloys were analyzed in detail through X‐ray diffraction (XRD). The FCC/FCT distribution characteristics were observed using electron backscatter diffraction (BSE). The alloys’ dynamic mechanical spectrums and internal friction (IF) were measured using an inverted torsion pendulum device. It is found that the addition of Sn promotes the Mn segregation in the as‐cast Mn‐44Cu‐1.5Al alloys. A large amount of FCT phases appear in the dendritic trunks, enhancing the damping capacity of the alloys. In the meantime, the Sn atoms enhance the twin boundary mobility in Mn‐rich dendritic trunks. As a result, the alloy containing 1 wt. % Sn own the highest damping capacity in the alloys.This article is protected by copyright. All rights reserved.

show abstract

Section: Discussionmentioning

confidence: 99%

ln \frac{\left(\omega\right)_{2}}{\left(\omega\right)_{1}} = \left(\right. \frac{1}{T_{1}} - \frac{1}{T_{1}} \left.\right) \frac{H}{R}

…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Amplifying Mn Segregation and Enhancing Damping Capacity via Adding Sn in Mn–44Cu–1.5Al as‐Cast Alloys

Xu,

Guo

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

show abstract

“…It is noted from the XRD results in Figure 1 that the (111) orientation becomes dominant after aging treatment. As for specimen 1#, the preferred orientation is (200) owing to the large pulling rate of directional solidification [4]. It is reported that the spinodal decomposition can change the preferred orientation of the alloy [19].…”

Section: Damping Performancementioning

confidence: 99%

“…Mn-Cu-based damping alloys have attracted sustained attention owing to their excellent performance on vibration and noise reduction [1][2][3]. To cope with the requirement of ultra-high damping capacity (tan δ > 0.08) for the application on rapidly developed modern industry, recently, an inspiring approach has been successfully achieved for the preparation of ultrahigh damping Mn-Cu alloy under directional solidification [4]. The catch is that the alloy prepared by this method is only suitable to the temperature range of 200-250 K corresponding to the twin boundary relaxation of parent phase twinning and thus cannot maintain high damping capacity around room temperature.…”

Section: Introductionmentioning

confidence: 99%

Tuning ultra-high damping capacity of Mn–Cu alloy to fit wide-range service temperature

Zhang

Tian

et al. 2022

Materials Science and Technology

Self Cite

View full text Add to dashboard Cite

Mn–Cu-based damping alloy prepared by directional solidification is very promising for vibration and noise control. Aging treatment with and without application of magnetic field on the microstructure and damping performance of directionally solidified Mn–Cu alloy was studied by means of X-ray diffraction, differential scanning calorimetry, dynamic thermal mechanical analysis and scanning electron microscope. It is found that aging treatment makes the orientation shift from (200) to (111), and aging treatment under magnetic field helps Mn–Cu alloy keep high damping in the wide temperature range. The polymorphic microstructure characterised by fine twin bands with low-angle misorientation boundaries leads to a substantial increase of twin boundary internal friction up to several times higher than that of polycrystalline state.

show abstract

Effect of Ti addition on the damping and mechanical properties of solid-solution FeCrCoNi alloys

Zhou

Liu

et al. 2022

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Parent-phase twinning induced ultra-high damping capacity of Mn–20Cu–5Ni–2Fe alloy under directional solidification process

Cited by 13 publications

References 22 publications

Amplifying Mn Segregation and Enhancing Damping Capacity via Adding Sn in Mn–44Cu–1.5Al as‐Cast Alloys

Amplifying Mn Segregation and Enhancing Damping Capacity via Adding Sn in Mn–44Cu–1.5Al as‐Cast Alloys

Tuning ultra-high damping capacity of Mn–Cu alloy to fit wide-range service temperature

Effect of Ti addition on the damping and mechanical properties of solid-solution FeCrCoNi alloys

Contact Info

Product

Resources

About