Enhanced damping capacity of magnesium alloys by tensile twin boundaries

Yujie Cui; Yunping Li; Shihai Sun; Huakang Bian; Hua Huang; Zhongchang Wang; Yuichiro Koizumi; Akihiko Chiba

doi:10.1016/j.scriptamat.2015.01.002

Enhanced damping capacity of magnesium alloys by tensile twin boundaries

Yujie Cui, Yunping Li^*, Shihai Sun, Huakang Bian, Hua Huang, Zhongchang Wang, Yuichiro Koizumi, Akihiko Chiba

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

78 Citations (Scopus)

Abstract

We propose a novel method to fabricate Mg alloys with enhanced damping capacity without sacrificing mechanical properties by introducing {10-12} twin boundaries. We find that the twin boundaries and their reciprocating movements play a significant role in remarkably enhancing the damping capacity of Mg alloys at high vibration strain amplitude. Such enhancement is especially pronounced in a slightly hot-forged sample with a subsequent annealing at 250 °C for a short period, where incoherent twinning boundaries can be reorganized into coherent ones.

Original language	English
Pages (from-to)	8-11
Number of pages	4
Journal	Scripta Materialia
Volume	101
DOIs	https://doi.org/10.1016/j.scriptamat.2015.01.002
Publication status	Published - 1 May 2015
Externally published	Yes

Keywords

Damping capacity
Mg alloys
Plastic deformation
Twin boundary

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10.1016/j.scriptamat.2015.01.002

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Cui, Y., Li, Y., Sun, S., Bian, H., Huang, H., Wang, Z., Koizumi, Y., & Chiba, A. (2015). Enhanced damping capacity of magnesium alloys by tensile twin boundaries. Scripta Materialia, 101, 8-11. https://doi.org/10.1016/j.scriptamat.2015.01.002

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AU - Cui, Yujie

AU - Li, Yunping

AU - Sun, Shihai

AU - Bian, Huakang

AU - Huang, Hua

AU - Wang, Zhongchang

AU - Koizumi, Yuichiro

AU - Chiba, Akihiko

PY - 2015/5/1

Y1 - 2015/5/1

N2 - We propose a novel method to fabricate Mg alloys with enhanced damping capacity without sacrificing mechanical properties by introducing {10-12} twin boundaries. We find that the twin boundaries and their reciprocating movements play a significant role in remarkably enhancing the damping capacity of Mg alloys at high vibration strain amplitude. Such enhancement is especially pronounced in a slightly hot-forged sample with a subsequent annealing at 250 °C for a short period, where incoherent twinning boundaries can be reorganized into coherent ones.

AB - We propose a novel method to fabricate Mg alloys with enhanced damping capacity without sacrificing mechanical properties by introducing {10-12} twin boundaries. We find that the twin boundaries and their reciprocating movements play a significant role in remarkably enhancing the damping capacity of Mg alloys at high vibration strain amplitude. Such enhancement is especially pronounced in a slightly hot-forged sample with a subsequent annealing at 250 °C for a short period, where incoherent twinning boundaries can be reorganized into coherent ones.

KW - Damping capacity

KW - Mg alloys

KW - Plastic deformation

KW - Twin boundary

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VL - 101

SP - 8

EP - 11

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Enhanced damping capacity of magnesium alloys by tensile twin boundaries

Abstract

Keywords

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