High-strength and thermally stable bulk nanolayered composites due to twin-induced interfaces

Shijian Zheng; Irene J. Beyerlein; John S. Carpenter; Keonwook Kang; Jian Wang; Weizhong Han; Nathan A. Mara

doi:10.1038/ncomms2651

High-strength and thermally stable bulk nanolayered composites due to twin-induced interfaces

Shijian Zheng
, Irene J. Beyerlein
, John S. Carpenter
, Keonwook Kang
, Jian Wang
, Weizhong Han
, Nathan A. Mara

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

348 Citations (Scopus)

Abstract

Bulk nanostructured metals can attribute both exceptional strength and poor thermal stability to high interfacial content, making it a challenge to utilize them in high-temperature environments. Here we report that a bulk two-phase bimetal nanocomposite synthesised via severe plastic deformation uniquely possesses simultaneous high-strength and high thermal stability. For a bimetal spacing of 10 nm, this composite achieves an order of magnitude increase in hardness of 4.13 GPa over its constituents and maintains it (4.07 GPa), even after annealing at 500C for 1 h. It owes this extraordinary property to an atomically well-ordered bimaterial interface that results from twin-induced crystal reorientation, persists after extreme strains and prevails over the entire bulk. This discovery proves that interfaces can be designed within bulk nanostructured composites to radically outperform previously prepared bulk nanocrystalline materials, with respect to both mechanical and thermal stability. © 2013 Macmillan Publishers Limited. All rights reserved.

Original language	English
Article number	1696
Journal	Nature Communications
Volume	4
DOIs	https://doi.org/10.1038/ncomms2651
Publication status	Published - 2013
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported in full by the Center for Materials at Irradiation and Mechanical Extremes, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number 2008LANL1026. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the US Department of Energy, Office of Science. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US Department of Energy under contract DE-AC52-06NA25396. This work has also benefited from the use of the Lujan Neutron Scattering Center at LANSCE founded by the US Department of Energy, Office of Basic Energy Sciences. We appreciate help from Dr Sven C. Vogel and Dr Rodney J. McCabe of Los Alamos National Laboratory on neutron diffraction and EBSD thumbnail image, respectively. We also thank Prof Xiuliang Ma and Ph.D. student Bing Yang of Shenyang National Laboratory for Materials Science, Institute of Metal Research, for their assistance on obtaining the GPA strain map.

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abstract = "Bulk nanostructured metals can attribute both exceptional strength and poor thermal stability to high interfacial content, making it a challenge to utilize them in high-temperature environments. Here we report that a bulk two-phase bimetal nanocomposite synthesised via severe plastic deformation uniquely possesses simultaneous high-strength and high thermal stability. For a bimetal spacing of 10 nm, this composite achieves an order of magnitude increase in hardness of 4.13 GPa over its constituents and maintains it (4.07 GPa), even after annealing at 500C for 1 h. It owes this extraordinary property to an atomically well-ordered bimaterial interface that results from twin-induced crystal reorientation, persists after extreme strains and prevails over the entire bulk. This discovery proves that interfaces can be designed within bulk nanostructured composites to radically outperform previously prepared bulk nanocrystalline materials, with respect to both mechanical and thermal stability. {\textcopyright} 2013 Macmillan Publishers Limited. All rights reserved.",

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AU - Zheng, Shijian

AU - Beyerlein, Irene J.

AU - Carpenter, John S.

AU - Kang, Keonwook

AU - Wang, Jian

AU - Han, Weizhong

AU - Mara, Nathan A.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - Bulk nanostructured metals can attribute both exceptional strength and poor thermal stability to high interfacial content, making it a challenge to utilize them in high-temperature environments. Here we report that a bulk two-phase bimetal nanocomposite synthesised via severe plastic deformation uniquely possesses simultaneous high-strength and high thermal stability. For a bimetal spacing of 10 nm, this composite achieves an order of magnitude increase in hardness of 4.13 GPa over its constituents and maintains it (4.07 GPa), even after annealing at 500C for 1 h. It owes this extraordinary property to an atomically well-ordered bimaterial interface that results from twin-induced crystal reorientation, persists after extreme strains and prevails over the entire bulk. This discovery proves that interfaces can be designed within bulk nanostructured composites to radically outperform previously prepared bulk nanocrystalline materials, with respect to both mechanical and thermal stability. © 2013 Macmillan Publishers Limited. All rights reserved.

AB - Bulk nanostructured metals can attribute both exceptional strength and poor thermal stability to high interfacial content, making it a challenge to utilize them in high-temperature environments. Here we report that a bulk two-phase bimetal nanocomposite synthesised via severe plastic deformation uniquely possesses simultaneous high-strength and high thermal stability. For a bimetal spacing of 10 nm, this composite achieves an order of magnitude increase in hardness of 4.13 GPa over its constituents and maintains it (4.07 GPa), even after annealing at 500C for 1 h. It owes this extraordinary property to an atomically well-ordered bimaterial interface that results from twin-induced crystal reorientation, persists after extreme strains and prevails over the entire bulk. This discovery proves that interfaces can be designed within bulk nanostructured composites to radically outperform previously prepared bulk nanocrystalline materials, with respect to both mechanical and thermal stability. © 2013 Macmillan Publishers Limited. All rights reserved.

UR - https://www.scopus.com/pages/publications/84877743986

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DO - 10.1038/ncomms2651

M3 - RGC 21 - Publication in refereed journal

SN - 2041-1723

VL - 4

JO - Nature Communications

JF - Nature Communications

M1 - 1696

ER -

High-strength and thermally stable bulk nanolayered composites due to twin-induced interfaces

Abstract

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