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Tensile behavior and flow stress anisotropy of accumulative roll bonded Cu-Nb nanolaminates

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4941043· OSTI ID:22489400
; ;  [1];  [2];  [3]
  1. Materials Department, University of California Santa Barbara, Santa Barbara, California 93106 (United States)
  2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  3. Institute for Materials Science and the Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
The flow stress, ductility, and in-plane anisotropy are evaluated for bulk accumulative roll bonded copper-niobium nanolaminates with layer thicknesses ranging from 1.8 μm to 15 nm. Uniaxial tensile tests conducted parallel to the rolling direction and transverse direction demonstrate that ductility generally decreases with decreasing layer thickness; however, at 30 nm, both high strengths (1200 MPa) and significant ductility (8%) are achieved. The yield strength increases monotonically with decreasing layer thickness, consistent with the Hall-Petch relationship, and significant in-plane flow stress anisotropy is observed. Taylor polycrystal modeling is used to demonstrate that crystallographic texture is responsible for the in-plane anisotropy and that the effects of texture dominate even at nanoscale layer thicknesses.
OSTI ID:
22489400
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 5 Vol. 108; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English

References (27)

Tensile behavior of 40nm Cu/Nb nanoscale multilayers journal May 2008
A self-consistent anisotropic approach for the simulation of plastic deformation and texture development of polycrystals: Application to zirconium alloys journal September 1993
Plastic flow stability of metallic nanolaminate composites journal December 2006
Interface-driven microstructure development and ultra high strength of bulk nanostructured Cu-Nb multilayers fabricated by severe plastic deformation journal April 2013
Modelling the combined effect of grain size and grain shape on plastic anisotropy of metals journal May 2012
An overview of interface-dominated deformation mechanisms in metallic multilayers journal February 2011
Instabilities and ductility of nanocrystalline and ultrafine-grained metals journal October 2003
Processing Parameter Influence on Texture and Microstructural Evolution in Cu-Nb Multilayer Composites Fabricated via Accumulative Roll Bonding journal January 2014
Ex situ and in situ measurements of the shear strength of interfaces in metallic multilayers journal September 2012
An atomistically-informed dislocation dynamics model for the plastic anisotropy and tension–compression asymmetry of BCC metals journal October 2011
Length-scale-dependent deformation mechanisms in incoherent metallic multilayered composites journal October 2005
Thermally driven shape instabilities of Nb/Cu multilayer structures: instability of Nb/Cu multilayers journal September 1999
Microscale Characterization of Mechanical Properties journal August 2007
Deformation and fracture in microlaminates journal September 1996
Tensile testing low density multilayers: Aluminum/titanium journal October 1998
Wavelength‐Property Correlation in Electrodeposited Ultrastructured Cu‐Ni Multilayers journal February 1990
Modeling the texture evolution of Cu/Nb layered composites during rolling journal October 2013
Processing and Deformation Behavior of Bulk Cu–Nb Nanolaminates journal November 2014
Toward a quantitative understanding of mechanical behavior of nanocrystalline metals journal July 2007
Yield and fracture in polycrystalline niobium journal May 1960
Bulk texture evolution of Cu–Nb nanolamellar composites during accumulative roll bonding journal February 2012
The strain and grain size dependence of the flow stress of copper journal February 1982
Tensile Properties of Nanostructured Ni‐Cu Multilayered Materials Prepared by Electrodeposition journal December 1991
Texture Analysis with MTEX – Free and Open Source Software Toolbox journal February 2010
A new criterion for elasto-plastic transition in nanomaterials: Application to size and composite effects on Cu–Nb nanocomposite wires journal June 2009
Dislocation interactions in thin FCC metal films journal June 2003
Strain-Dependent Deformation Behavior in Nanocrystalline Metals journal July 2008

Cited By (8)

A review of slip transfer: applications of mesoscale techniques journal December 2017
Unraveling the Role of Interfaces on the Spall Failure of Cu/Ta Multilayered Systems journal January 2020
Coupled crystal orientation-size effects on the strength of nano crystals journal May 2016
Large strain synergetic material deformation enabled by hybrid nanolayer architectures journal September 2017
Microstructural Evolution and Mechanical Behavior of Cu/Nb Multilayer Composites Processed by Accumulative Roll Bonding journal August 2019
Dislocation interaction and fracture of Cu/Ta bilayer interfaces journal July 2019
Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates journal August 2017
Computational Analysis Methods in Atomistic Modeling of Crystals journal December 2013

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