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Title: Engineering Interface Structures and Thermal Stabilities via SPD Processing in Bulk Nanostructured Metals

Abstract

Nanostructured metals achieve extraordinary strength but suffer from low thermal stability, both a consequence of a high fraction of interfaces. Overcoming this tradeoff relies on making the interfaces themselves thermally stable. In this paper, we show that the atomic structures of bi-metal interfaces in macroscale nanomaterials suitable for engineering structures can be significantly altered via changing the severe plastic deformation (SPD) processing pathway. Two types of interfaces are formed, both exhibiting a regular atomic structure and providing for excellent thermal stability, up to more than half the melting temperature of one of the constituents. Most importantly, the thermal stability of one is found to be significantly better than the other, indicating the exciting potential to control and optimize macroscale robustness via atomic-scale bimetal interface tuning. As a result, we demonstrate an innovative way to engineer pristine bimetal interfaces for a new class of simultaneously strong and thermally stable materials.

Authors:
 [1];  [2];  [2];  [3];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Materials Science and Technology Division
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1321735
Report Number(s):
LA-UR-13-27101
Journal ID: ISSN 2045-2322
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 4; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; Material Science; interfaces; nanomaterials; strength; thermal stability; severe plastic deformation

Citation Formats

Zheng, Shijian, Carpenter, John S., McCabe, Rodney J., Beyerlein, Irene J., and Mara, Nathan A. Engineering Interface Structures and Thermal Stabilities via SPD Processing in Bulk Nanostructured Metals. United States: N. p., 2014. Web. doi:10.1038/srep04226.
Zheng, Shijian, Carpenter, John S., McCabe, Rodney J., Beyerlein, Irene J., & Mara, Nathan A. Engineering Interface Structures and Thermal Stabilities via SPD Processing in Bulk Nanostructured Metals. United States. https://doi.org/10.1038/srep04226
Zheng, Shijian, Carpenter, John S., McCabe, Rodney J., Beyerlein, Irene J., and Mara, Nathan A. Thu . "Engineering Interface Structures and Thermal Stabilities via SPD Processing in Bulk Nanostructured Metals". United States. https://doi.org/10.1038/srep04226. https://www.osti.gov/servlets/purl/1321735.
@article{osti_1321735,
title = {Engineering Interface Structures and Thermal Stabilities via SPD Processing in Bulk Nanostructured Metals},
author = {Zheng, Shijian and Carpenter, John S. and McCabe, Rodney J. and Beyerlein, Irene J. and Mara, Nathan A.},
abstractNote = {Nanostructured metals achieve extraordinary strength but suffer from low thermal stability, both a consequence of a high fraction of interfaces. Overcoming this tradeoff relies on making the interfaces themselves thermally stable. In this paper, we show that the atomic structures of bi-metal interfaces in macroscale nanomaterials suitable for engineering structures can be significantly altered via changing the severe plastic deformation (SPD) processing pathway. Two types of interfaces are formed, both exhibiting a regular atomic structure and providing for excellent thermal stability, up to more than half the melting temperature of one of the constituents. Most importantly, the thermal stability of one is found to be significantly better than the other, indicating the exciting potential to control and optimize macroscale robustness via atomic-scale bimetal interface tuning. As a result, we demonstrate an innovative way to engineer pristine bimetal interfaces for a new class of simultaneously strong and thermally stable materials.},
doi = {10.1038/srep04226},
url = {https://www.osti.gov/biblio/1321735}, journal = {Scientific Reports},
issn = {2045-2322},
number = ,
volume = 4,
place = {United States},
year = {2014},
month = {2}
}

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Cited by: 23 works
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Works referenced in this record:

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    Processing and Deformation Behavior of Bulk Cu–Nb Nanolaminates
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    Development of interface-dominant bulk Cu/V nanolamellar composites by cross accumulative roll bonding
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    Microstructure, Texture, and Mechanical Properties of Laminar Metal Composites Produced by Accumulative Roll Bonding
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    Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates
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    Interface-Driven Plasticity: The Presence of an Interface Affected Zone in Metallic Lamellar Composites: The Presence of an Interface Affected Zone …
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