Overcoming the Damping-Elasticity Paradox via 3D-Printed NiTiSn Nanocomposite

Bo Feng; Helong Liu; Hui Shen; Ying Yang; Fangmin Guo; Lishan Cui; Yang Ren; Jie Chen; Shuke Huang; Yao Xiao; Zhihui Zhang; Hongxiang Zong; Yinong Liu; Shijie Hao

doi:10.1002/advs.202506410

Overcoming the Damping-Elasticity Paradox via 3D-Printed NiTiSn Nanocomposite

Bo Feng, Helong Liu, Hui Shen, Ying Yang^*, Fangmin Guo, Lishan Cui, Yang Ren, Jie Chen, Shuke Huang, Yao Xiao^*, Zhihui Zhang, Hongxiang Zong, Yinong Liu, Shijie Hao^*

^*Corresponding author for this work

Department of Physics

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

29 Downloads (CityUHK Scholars)

Abstract

Developing high damping alloys (HDAs) with large elastic strain has attracted growing attention due to the increasing demand for energy absorption with overload reliability and reusability. However, damping capacity inherently conflicts with elasticity, because the former requires a liable movement of crystal defects while the latter opposite. To deal with the damping-elasticity paradox, the advantage of pseudobinary eutectic reaction and rapid cooling of laser powder bed fusion is taken to fabricate a bulk NiTiSn nanocomposite with a two-level hierarchical structure. The first-level architecture is composed of martensitic NiTi nanolamellae and reinforced Ti₃Sn nanolamellae. In addition to lattice strain matching and lamellar boundary strengthening, a novel mechanism of martensite reorientation mediated by reversible stress-induced detwinning-twinning is activated to generate large elastic strain. A high density of nanotwins and nanodomains within NiTi nanolamellae constitute the second-level architecture, which provides pronounced internal friction for high damping capacity. As a result, our NiTiSn nanocomposite exhibits a record-high integration of damping capacity (tanδ > 0.10) and elastic strain (exceeding 4.5%), as well as superb stability under cyclic overload. This research not only represents a major breakthrough in achieving HDAs with outstanding damping and elastic strain but also offers a novel paradigm for high-performance functional and structural materials.

© 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH

Original language	English
Article number	e06410
Number of pages	9
Journal	Advanced Science
Volume	12
Issue number	33
Online published	10 Jun 2025
DOIs	https://doi.org/10.1002/advs.202506410
Publication status	Published - 4 Sept 2025

Funding

B.F., H.L., and H.S. contributed equally to this work. This work was supported by the National Safety Academic Fund (U2130201 and U2330105) and the National Key R&D Program of China (2022YFB4600500). The use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, and Office of Basic Energy Science, under Contract No. DE-AC02-06CH11357.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

3D printing
damping-elasticity paradox
nanocomposites
reversible detwinning-twinning
shape memory alloys

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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abstract = "Developing high damping alloys (HDAs) with large elastic strain has attracted growing attention due to the increasing demand for energy absorption with overload reliability and reusability. However, damping capacity inherently conflicts with elasticity, because the former requires a liable movement of crystal defects while the latter opposite. To deal with the damping-elasticity paradox, the advantage of pseudobinary eutectic reaction and rapid cooling of laser powder bed fusion is taken to fabricate a bulk NiTiSn nanocomposite with a two-level hierarchical structure. The first-level architecture is composed of martensitic NiTi nanolamellae and reinforced Ti3Sn nanolamellae. In addition to lattice strain matching and lamellar boundary strengthening, a novel mechanism of martensite reorientation mediated by reversible stress-induced detwinning-twinning is activated to generate large elastic strain. A high density of nanotwins and nanodomains within NiTi nanolamellae constitute the second-level architecture, which provides pronounced internal friction for high damping capacity. As a result, our NiTiSn nanocomposite exhibits a record-high integration of damping capacity (tanδ > 0.10) and elastic strain (exceeding 4.5%), as well as superb stability under cyclic overload. This research not only represents a major breakthrough in achieving HDAs with outstanding damping and elastic strain but also offers a novel paradigm for high-performance functional and structural materials.{\textcopyright} 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH",

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author = "Bo Feng and Helong Liu and Hui Shen and Ying Yang and Fangmin Guo and Lishan Cui and Yang Ren and Jie Chen and Shuke Huang and Yao Xiao and Zhihui Zhang and Hongxiang Zong and Yinong Liu and Shijie Hao",

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AU - Feng, Bo

AU - Liu, Helong

AU - Shen, Hui

AU - Yang, Ying

AU - Guo, Fangmin

AU - Cui, Lishan

AU - Ren, Yang

AU - Chen, Jie

AU - Huang, Shuke

AU - Xiao, Yao

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AU - Hao, Shijie

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N2 - Developing high damping alloys (HDAs) with large elastic strain has attracted growing attention due to the increasing demand for energy absorption with overload reliability and reusability. However, damping capacity inherently conflicts with elasticity, because the former requires a liable movement of crystal defects while the latter opposite. To deal with the damping-elasticity paradox, the advantage of pseudobinary eutectic reaction and rapid cooling of laser powder bed fusion is taken to fabricate a bulk NiTiSn nanocomposite with a two-level hierarchical structure. The first-level architecture is composed of martensitic NiTi nanolamellae and reinforced Ti3Sn nanolamellae. In addition to lattice strain matching and lamellar boundary strengthening, a novel mechanism of martensite reorientation mediated by reversible stress-induced detwinning-twinning is activated to generate large elastic strain. A high density of nanotwins and nanodomains within NiTi nanolamellae constitute the second-level architecture, which provides pronounced internal friction for high damping capacity. As a result, our NiTiSn nanocomposite exhibits a record-high integration of damping capacity (tanδ > 0.10) and elastic strain (exceeding 4.5%), as well as superb stability under cyclic overload. This research not only represents a major breakthrough in achieving HDAs with outstanding damping and elastic strain but also offers a novel paradigm for high-performance functional and structural materials.© 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH

AB - Developing high damping alloys (HDAs) with large elastic strain has attracted growing attention due to the increasing demand for energy absorption with overload reliability and reusability. However, damping capacity inherently conflicts with elasticity, because the former requires a liable movement of crystal defects while the latter opposite. To deal with the damping-elasticity paradox, the advantage of pseudobinary eutectic reaction and rapid cooling of laser powder bed fusion is taken to fabricate a bulk NiTiSn nanocomposite with a two-level hierarchical structure. The first-level architecture is composed of martensitic NiTi nanolamellae and reinforced Ti3Sn nanolamellae. In addition to lattice strain matching and lamellar boundary strengthening, a novel mechanism of martensite reorientation mediated by reversible stress-induced detwinning-twinning is activated to generate large elastic strain. A high density of nanotwins and nanodomains within NiTi nanolamellae constitute the second-level architecture, which provides pronounced internal friction for high damping capacity. As a result, our NiTiSn nanocomposite exhibits a record-high integration of damping capacity (tanδ > 0.10) and elastic strain (exceeding 4.5%), as well as superb stability under cyclic overload. This research not only represents a major breakthrough in achieving HDAs with outstanding damping and elastic strain but also offers a novel paradigm for high-performance functional and structural materials.© 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH

KW - 3D printing

KW - damping-elasticity paradox

KW - nanocomposites

KW - reversible detwinning-twinning

KW - shape memory alloys

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Overcoming the Damping-Elasticity Paradox via 3D-Printed NiTiSn Nanocomposite

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