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

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep04226· OSTI ID:1321735
 [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

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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1321735
Report Number(s):
LA-UR-13-27101
Journal Information:
Scientific Reports, Vol. 4; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 57 works
Citation information provided by
Web of Science

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Cited By (10)

Large‐Scale Preparation of 2D Metal Films by a Top‐Down Approach journal March 2020
Processing and Deformation Behavior of Bulk Cu–Nb Nanolaminates journal November 2014
Processing of Dilute Mg–Zn–Mn–Ca Alloy/Nb Multilayers by Accumulative Roll Bonding journal August 2019
Development of interface-dominant bulk Cu/V nanolamellar composites by cross accumulative roll bonding journal January 2017
Microstructure, Texture, and Mechanical Properties of Laminar Metal Composites Produced by Accumulative Roll Bonding journal August 2018
Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates journal August 2017
Interface-Driven Plasticity: The Presence of an Interface Affected Zone in Metallic Lamellar Composites: The Presence of an Interface Affected Zone … journal July 2014
Three-dimensional Printed Acrylonitrile Butadiene Styrene Framework Coated with Cu-BTC Metal-organic Frameworks for the Removal of Methylene Blue journal August 2014
Dislocation–Twin Boundary Interactions Induced Nanocrystalline via SPD Processing in Bulk Metals journal March 2015
First-principles study of point defects at semicoherent interface text January 2014