Helium irradiation induced ultra-high strength nanotwinned Cu with nanovoids

Fan, Cuncai; Li, Qiang; Ding, Jie; Liang, Yanxiang; Shang, Zhongxia; Li, Jin; Su, Ruizhe; Cho, Jaehun; Chen, Di; Wang, Yongqiang; Wang, Jian; Wang, Haiyan; Zhang, Xinghang

doi:10.1016/j.actamat.2019.07.003

Title: Helium irradiation induced ultra-high strength nanotwinned Cu with nanovoids

Abstract

There are mounting studies that show nanotwinned (NT) metals have enhanced radiation tolerance. Yet, the mechanical deformability of irradiated nanotwinned metals is a largely under explored subject. Here we look at the mechanical properties of He ion irradiated nanotwinned Cu with preexisting nanovoids. In comparison with coarse-grained Cu, nanovoid nanotwinned (NV-NT) Cu exhibits prominently improved radiation tolerance. Moroever, in situ micropillar compression tests show that the irradiated NV-NT Cu has an ultrahigh yield strength of ~1.6 GPa with significant plasticity. Post radiation analyses show that twin boundaries are decorated with He bubbles and thick stacking faults. These stacking fault modified twin boundaries introduce significant strengthening in NT Cu. This study provides further insight into the design of high-strength, advanced radiation tolerant nanostructured materials for nuclear reactor applications.

Authors:

Fan, Cuncai ^[1];

^[1]; Ding, Jie ^[1]; Liang, Yanxiang ^[2];

^[1];

^[1]; Su, Ruizhe ^[1]; Cho, Jaehun ^[1]; Chen, Di ^[3];

^[4];

^[2]; Wang, Haiyan ^[5];

^[1]

Purdue Univ., West Lafayette, IN (United States)
Univ. of Nebraska, Lincoln, NE (United States)
Univ. of Houston, TX (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Purdue Univ., West Lafayette, IN (United States); School of Electrical and Computer Engineering, West Lafayette, IN (United States)

Publication Date:: Wed Jul 03 00:00:00 EDT 2019

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Office of Science (SC). Basic Energy Sciences (BES) (SC-22); USDOE National Nuclear Security Administration (NNSA); U.S. Office of Naval Research

OSTI Identifier:: 1542859

Report Number(s):: LA-UR-19-26253
Journal ID: ISSN 1359-6454

Grant/Contract Number:: 89233218CNA000001

Resource Type:: Accepted Manuscript

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Volume: 177; Journal ID: ISSN 1359-6454

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; He irradiation; Nanotwinned Cu; He bubbles; Micropillar compression; Radiation hardening

Citation Formats


                    Fan, Cuncai, Li, Qiang, Ding, Jie, Liang, Yanxiang, Shang, Zhongxia, Li, Jin, Su, Ruizhe, Cho, Jaehun, Chen, Di, Wang, Yongqiang, Wang, Jian, Wang, Haiyan, and Zhang, Xinghang. Helium irradiation induced ultra-high strength nanotwinned Cu with nanovoids.  United States: N. p., 2019. 
Web.  doi:10.1016/j.actamat.2019.07.003.

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                    Fan, Cuncai, Li, Qiang, Ding, Jie, Liang, Yanxiang, Shang, Zhongxia, Li, Jin, Su, Ruizhe, Cho, Jaehun, Chen, Di, Wang, Yongqiang, Wang, Jian, Wang, Haiyan, & Zhang, Xinghang. Helium irradiation induced ultra-high strength nanotwinned Cu with nanovoids.  United States.  https://doi.org/10.1016/j.actamat.2019.07.003

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                    Fan, Cuncai, Li, Qiang, Ding, Jie, Liang, Yanxiang, Shang, Zhongxia, Li, Jin, Su, Ruizhe, Cho, Jaehun, Chen, Di, Wang, Yongqiang, Wang, Jian, Wang, Haiyan, and Zhang, Xinghang. Wed .  
"Helium irradiation induced ultra-high strength nanotwinned Cu with nanovoids".  United States.  https://doi.org/10.1016/j.actamat.2019.07.003.  https://www.osti.gov/servlets/purl/1542859.

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@article{osti_1542859,

  title        = {Helium irradiation induced ultra-high strength nanotwinned Cu with nanovoids},

  author       = {Fan, Cuncai and Li, Qiang and Ding, Jie and Liang, Yanxiang and Shang, Zhongxia and Li, Jin and Su, Ruizhe and Cho, Jaehun and Chen, Di and Wang, Yongqiang and Wang, Jian and Wang, Haiyan and Zhang, Xinghang},

  abstractNote = {There are mounting studies that show nanotwinned (NT) metals have enhanced radiation tolerance. Yet, the mechanical deformability of irradiated nanotwinned metals is a largely under explored subject. Here we look at the mechanical properties of He ion irradiated nanotwinned Cu with preexisting nanovoids. In comparison with coarse-grained Cu, nanovoid nanotwinned (NV-NT) Cu exhibits prominently improved radiation tolerance. Moroever, in situ micropillar compression tests show that the irradiated NV-NT Cu has an ultrahigh yield strength of ~1.6 GPa with significant plasticity. Post radiation analyses show that twin boundaries are decorated with He bubbles and thick stacking faults. These stacking fault modified twin boundaries introduce significant strengthening in NT Cu. This study provides further insight into the design of high-strength, advanced radiation tolerant nanostructured materials for nuclear reactor applications.},

  doi          = {10.1016/j.actamat.2019.07.003},

  journal      = {Acta Materialia},

  number       = ,

  volume       = 177,

  place        = {United States},

  year         = {Wed Jul 03 00:00:00 EDT 2019},

  month        = {Wed Jul 03 00:00:00 EDT 2019}

}

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Figures / Tables:

Table 1: Yield stress σ _Y and ultimate stress σ_U for all the compressed pillars, defined and measured based on the local stress-displacement curves in Figure 5. AR – As-received; IR – Irradiated; AD – As-deposited.

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Li, N.; Wang, J.; Misra, A.
Acta Materialia, Vol. 59, Issue 15
DOI: 10.1016/j.actamat.2011.06.007

Novel deformation mechanism of twinned nanowires
journal, May 2006

Wang, Jian; Huang, Hanchen
Applied Physics Letters, Vol. 88, Issue 20
DOI: 10.1063/1.2204760

Interactions between non-screw lattice dislocations and coherent twin boundaries in face-centered cubic metals
journal, March 2008

Jin, Z. -H.; Gumbsch, P.; Albe, K.
Acta Materialia, Vol. 56, Issue 5
DOI: 10.1016/j.actamat.2007.11.020

Tailoring plasticity of metallic glasses via interfaces in Cu/amorphous CuNb laminates
journal, July 2017

Fan, Zhe; Li, Qiang; Li, Jin
Journal of Materials Research, Vol. 32, Issue 14
DOI: 10.1557/jmr.2017.249

Plasticity and ultra-low stress induced twin boundary migration in nanotwinned Cu by in situ nanoindentation studies
journal, June 2014

Liu, Y.; Jian, J.; Chen, Y.
Applied Physics Letters, Vol. 104, Issue 23
DOI: 10.1063/1.4882242

In situ nanoindentation study on plasticity and work hardening in aluminium with incoherent twin boundaries
journal, September 2014

Bufford, D.; Liu, Y.; Wang, J.
Nature Communications, Vol. 5, Issue 1
DOI: 10.1038/ncomms5864

In situ studies of irradiation-induced twin boundary migration in nanotwinned Ag
journal, September 2013

Yu, K. Y.; Bufford, D.; Khatkhatay, F.
Scripta Materialia, Vol. 69, Issue 5
DOI: 10.1016/j.scriptamat.2013.05.024

Shear response of $Σ 3 {112}$ twin boundaries in face-centered-cubic metals
journal, February 2011

Wang, J.; Misra, A.; Hirth, J. P.
Physical Review B, Vol. 83, Issue 6
DOI: 10.1103/PhysRevB.83.064106

Works referencing / citing this record:

Hierarchical nanotwins in single-crystal-like nickel with high strength and corrosion resistance produced via a hybrid technique
journal, January 2020

Li, Qiang; Xue, Sichuang; Price, Patrick
Nanoscale, Vol. 12, Issue 3
DOI: 10.1039/c9nr07472d

Dual Beam In Situ Radiation Studies of Nanocrystalline Cu
journal, August 2019

Fan, Cuncai; Shang, Zhongxia; Niu, Tongjun
Materials, Vol. 12, Issue 17
DOI: 10.3390/ma12172721

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

Damage-tolerant nanotwinned metals with nanovoids under radiation environments

Journal Article Chen, Y. ; Yu, K. Y. ; Liu, Y. ; ... - Nature Communications

Material performance in extreme radiation environments is central to the design of future nuclear reactors. Radiation induces significant damage in the form of dislocation loops and voids in irradiated materials, and continuous radiation often leads to void growth and subsequent void swelling in metals with low stacking fault energy. Here we show that by using in situ heavy ion irradiation in a transmission electron microscope, pre-introduced nanovoids in nanotwinned Cu efficiently absorb radiation-induced defects accompanied by gradual elimination of nanovoids, enhancing radiation tolerance of Cu. In situ studies and atomistic simulations reveal that such remarkable self-healing capability stems from highmore »« less
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https://doi.org/10.1038/ncomms8036

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Journal Article Li, Qiang ; Xue, Sichuang ; Price, Patrick ; ... - Nanoscale

High-density growth nanotwins enable high-strength and good ductility in metallic materials. However, twinning propensity is greatly reduced in metals with high stacking fault energy. In this study, we adopted a hybrid technique coupled with template-directed heteroepitaxial growth method to fabricate single-crystal-like, nanotwinned (nt) Ni. The nt Ni primarily contains hierarchical twin structures that consist of coherent and incoherent twin boundary segments with few conventional grain boundaries. In situ compression studies show the nt Ni has a high flow strength of ~2 GPa and good deformability. Moreover, the nt Ni has superb corrosion behavior due to the unique twin structure inmore »« less
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https://doi.org/10.1039/c9nr07472d

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In Situ Nanoindentation Studies on Detwinning and Work Hardening in Nanotwinned Monolithic Metals

Journal Article Liu, Y. ; Li, N. ; Bufford, D. ; ... - Journal of The Minerals, Metals & Materials Society

Certain nanotwinned (nt) metals have rare combinations of high mechanical strength and ductility. Here, we review recent in situ nanoindentation studies (using transmission electron microscopes) on the deformation mechanisms of nt face-centered cubic metals including Cu, Ni, and Al with a wide range of stacking fault energy (SFE). Moreover, in nt Cu with low-to-intermediate SFE, detwinning (accompanied by rapid twin boundary migration) occurs at ultralow stress. In Ni with relatively high SFE, coherent {111} twin boundaries lead to substantial work hardening. Twinned Al has abundant {112} incoherent twin boundaries, which induce significant work-hardening capability and plasticity in Al. Finally, twinmore »« less
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The objective of this project is to investigate the role of different types of layer interfaces on the formation of high density stacking fault (SF) in Al in Al/fcc multilayers, and understand the corresponding deformation mechanisms of the films. Stacking faults or twins can be intentionally introduced (via growth) into certain fcc metals with low stacking fault energy (such as Cu, Ag and 330 stainless steels) to achieve high strength, high ductility, superior thermal stability and good electrical conductivity. However it is still a major challenge to synthesize these types of defects into metals with high stacking fault energy, suchmore »« less
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Nanotwinned metals exhibit outstanding radiation tolerance as twin boundaries effectively engage, transport and eliminate radiation-induced defects. However, radiation-induced detwinning may reduce the radiation tolerance associated with twin boundaries, especially at elevated temperatures. Here we show, via in-situ Kr ion irradiation inside a transmission electron microscope, that 3 at. % Fe in epitaxial nanotwinned Cu (Cu₉₇Fe₃) significantly improves the thermal and radiation stability of nanotwins during radiation up to 5 displacements-per-atom at 200 °C. Such enhanced stability of nanotwins is attributed to a diffuse 9R phase resulted from the dissociation of incoherent twin boundaries in nanotwinned Cu₉₇Fe₃. The mechanisms for themore »« less
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Title: Helium irradiation induced ultra-high strength nanotwinned Cu with nanovoids

Abstract

Citation Formats

Figures / Tables:

Opportunities and challenges for a sustainable energy future journal, August 2012

Nuclear power's new dawn journal, May 2004

Materials challenges in nuclear energy journal, February 2013

Structural materials for fission & fusion energy journal, November 2009

In situ study on surface roughening in radiation-resistant Ag nanowires journal, March 2018

Evolution of fine-scale defects in stainless steels neutron-irradiated at 275 °C journal, April 2003

Defect microstructures in neutron-irradiated copper and stainless steel journal, July 1988

In situ heavy ion irradiation studies of nanopore shrinkage and enhanced radiation tolerance of nanoporous Au journal, January 2017

In situ studies on irradiation resistance of nanoporous Au through temperature-jump tests journal, January 2018

Irradiation-induced stacking fault tetrahedra in fcc metals journal, February 2005

Microstructure and cavity swelling in reactor-irradiated dilute copper-boron alloy journal, March 1991

Void swelling in binary FeCr alloys at 200 dpa journal, August 1995

Single- and dual-beam in situ irradiations of high-purity iron in a transmission electron microscope: Effects of heavy ion irradiation and helium injection journal, February 2014

Observation and analysis of defect cluster production and interactions with dislocations journal, August 2004

Radiation damage in helium ion irradiated nanocrystalline Fe journal, June 2012

In Situ Study of Deformation Twinning and Detwinning in Helium Irradiated Small-Volume Copper journal, June 2017

In situ micro-tensile testing on proton beam-irradiated stainless steel journal, September 2017

Mechanical behavior of copper containing a gas-bubble superlattice journal, December 2016

Characterization of ion beam irradiated 304 stainless steel utilizing nanoindentation and Laue microdiffraction journal, March 2015

Radiation damage tolerant nanomaterials journal, November 2013

Designing Radiation Resistance in Materials for Fusion Energy journal, July 2014

Dislocation loops in neutron-irradiated copper journal, December 1959

The study of heavy-ion damage in pure copper journal, August 1981

Void swelling and defect cluster formation in reactor-irradiated copper journal, December 1989

Effect of irradiation on the properties of nanomaterials journal, September 2010

Ultrahigh Strength and High Electrical Conductivity in Copper journal, April 2004

Revealing the Maximum Strength in Nanotwinned Copper journal, January 2009

Stabilizing nanostructures in metals using grain and twin boundary architectures journal, March 2016

Retaining ductility journal, June 2004

Mechanical properties of nanocrystalline materials journal, May 2006

Irradiation damage of single crystal, coarse-grained, and nanograined copper under helium bombardment at 450 °C journal, October 2013

Radiation damage in nanostructured materials journal, July 2018

A thermal spike model of grain growth under irradiation journal, January 2008

Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale journal, April 2009

Tensile properties of copper with nano-scale twins journal, May 2005

Thermal stability of sputtered Cu films with nanoscale growth twins journal, May 2008

In situ studies on radiation tolerance of nanotwinned Cu journal, June 2016

In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals journal, April 2015

Removal of stacking-fault tetrahedra by twin boundaries in nanotwinned metals journal, January 2013

Superior twin stability and radiation resistance of nanotwinned Ag solid solution alloy journal, June 2018

9R phase enabled superior radiation stability of nanotwinned Cu alloys via in situ radiation at elevated temperature journal, April 2019

Damage-tolerant nanotwinned metals with nanovoids under radiation environments journal, April 2015

Defect evolution in heavy ion irradiated nanotwinned Cu with nanovoids journal, December 2017

In Situ Studies on the Irradiation-Induced Twin Boundary-Defect Interactions in Cu journal, August 2017

Radiation induced detwinning in nanotwinned Cu journal, March 2017

The influence of ∑3 twin boundaries on the formation of radiation-induced defect clusters in nanotwinned Cu journal, June 2011

Emulation of reactor irradiation damage using ion beams journal, October 2014

Opportunities and limitations for ion beams in radiation effects studies: Bridging critical gaps between charged particle and neutron irradiations journal, January 2018

Small-scale mechanical testing on nuclear materials: bridging the experimental length-scale gap journal, January 2018

Helium irradiated cavity formation and defect energetics in Ni-based binary single-phase concentrated solid solution alloys journal, February 2019

Cracking behavior of helium-irradiated small-volume copper journal, April 2018

TEM in situ micropillar compression tests of ion irradiated oxide dispersion strengthened alloy journal, January 2017

Linking microstructure and local mechanical properties in SiC-SiC fiber composite using micromechanical testing journal, April 2019

Response of 14YWT alloys under neutron irradiation: A complementary study on microstructure and mechanical properties journal, April 2019

SRIM – The stopping and range of ions in matter (2010) journal, June 2010

Plasticity of Micrometer-Scale Single Crystals in Compression journal, August 2009

Size dependence of mechanical properties of gold at the micron scale in the absence of strain gradients journal, April 2005

Experimental studies of helium in metals journal, January 1983

Self-organization of helium precipitates into elongated channels within metal nanolayers journal, November 2017

Defect structures and hardening mechanisms in high dose helium ion implanted Cu and Cu/Nb multilayer thin films journal, May 2012

Interface enabled defects reduction in helium ion irradiated Cu/V nanolayers journal, December 2010

Radiation induced nanovoid shrinkage in Cu at room temperature: An in situ study journal, June 2019

Mechanisms of helium interaction with radiation effects in metals and alloys: A review journal, November 1983

Sample Dimensions Influence Strength and Crystal Plasticity journal, August 2004

Mechanical annealing and source-limited deformation in submicrometre-diameter Ni crystals journal, December 2007

In situ nanocompression testing of irradiated copper journal, June 2011

Micro-compression testing: A critical discussion of experimental constraints journal, April 2009

Intrinsic-extrinsic size effect relationship for micromechanical tests journal, March 2019

Helium Implantation Effects on the Compressive Response of Cu Nanopillars journal, November 2012

Dislocation nucleation governed softening and maximum strength in nano-twinned metals journal, April 2010

Tensile strength and work hardening of ultrafine‐grained high‐purity copper journal, August 1975

High-strength sputter-deposited Cu foils with preferred orientation of nanoscale growth twins journal, April 2006

Work hardening of ultrafine-grained copper with nanoscale twins journal, July 2007

Epitaxial nanotwinned Cu films with high strength and high conductivity journal, August 2008

Tensile behavior of columnar grained Cu with preferentially oriented nanoscale twins journal, October 2011

Fabrication and Characterization of (111)-Oriented and Nanotwinned Cu by Dc Electrodeposition journal, September 2012

Opportunities and challenges for a sustainable energy future
journal, August 2012

Nuclear power's new dawn
journal, May 2004

Materials challenges in nuclear energy
journal, February 2013

Structural materials for fission & fusion energy
journal, November 2009

In situ study on surface roughening in radiation-resistant Ag nanowires
journal, March 2018

Evolution of fine-scale defects in stainless steels neutron-irradiated at 275 °C
journal, April 2003

Defect microstructures in neutron-irradiated copper and stainless steel
journal, July 1988

In situ heavy ion irradiation studies of nanopore shrinkage and enhanced radiation tolerance of nanoporous Au
journal, January 2017

In situ studies on irradiation resistance of nanoporous Au through temperature-jump tests
journal, January 2018

Irradiation-induced stacking fault tetrahedra in fcc metals
journal, February 2005

Microstructure and cavity swelling in reactor-irradiated dilute copper-boron alloy
journal, March 1991

Void swelling in binary FeCr alloys at 200 dpa
journal, August 1995

Single- and dual-beam in situ irradiations of high-purity iron in a transmission electron microscope: Effects of heavy ion irradiation and helium injection
journal, February 2014

Observation and analysis of defect cluster production and interactions with dislocations
journal, August 2004

Radiation damage in helium ion irradiated nanocrystalline Fe
journal, June 2012

In Situ Study of Deformation Twinning and Detwinning in Helium Irradiated Small-Volume Copper
journal, June 2017

In situ micro-tensile testing on proton beam-irradiated stainless steel
journal, September 2017

Mechanical behavior of copper containing a gas-bubble superlattice
journal, December 2016

Characterization of ion beam irradiated 304 stainless steel utilizing nanoindentation and Laue microdiffraction
journal, March 2015

Radiation damage tolerant nanomaterials
journal, November 2013

Designing Radiation Resistance in Materials for Fusion Energy
journal, July 2014

Dislocation loops in neutron-irradiated copper
journal, December 1959

The study of heavy-ion damage in pure copper
journal, August 1981

Void swelling and defect cluster formation in reactor-irradiated copper
journal, December 1989

Effect of irradiation on the properties of nanomaterials
journal, September 2010

Ultrahigh Strength and High Electrical Conductivity in Copper
journal, April 2004

Revealing the Maximum Strength in Nanotwinned Copper
journal, January 2009

Stabilizing nanostructures in metals using grain and twin boundary architectures
journal, March 2016

Retaining ductility
journal, June 2004

Mechanical properties of nanocrystalline materials
journal, May 2006

Irradiation damage of single crystal, coarse-grained, and nanograined copper under helium bombardment at 450 °C
journal, October 2013

Radiation damage in nanostructured materials
journal, July 2018

A thermal spike model of grain growth under irradiation
journal, January 2008

Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale
journal, April 2009

Tensile properties of copper with nano-scale twins
journal, May 2005

Thermal stability of sputtered Cu films with nanoscale growth twins
journal, May 2008

In situ studies on radiation tolerance of nanotwinned Cu
journal, June 2016

In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals
journal, April 2015

Removal of stacking-fault tetrahedra by twin boundaries in nanotwinned metals
journal, January 2013

Superior twin stability and radiation resistance of nanotwinned Ag solid solution alloy
journal, June 2018

9R phase enabled superior radiation stability of nanotwinned Cu alloys via in situ radiation at elevated temperature
journal, April 2019

Damage-tolerant nanotwinned metals with nanovoids under radiation environments
journal, April 2015

Defect evolution in heavy ion irradiated nanotwinned Cu with nanovoids
journal, December 2017

In Situ Studies on the Irradiation-Induced Twin Boundary-Defect Interactions in Cu
journal, August 2017

Radiation induced detwinning in nanotwinned Cu
journal, March 2017

The influence of ∑3 twin boundaries on the formation of radiation-induced defect clusters in nanotwinned Cu
journal, June 2011

Emulation of reactor irradiation damage using ion beams
journal, October 2014

Opportunities and limitations for ion beams in radiation effects studies: Bridging critical gaps between charged particle and neutron irradiations
journal, January 2018

Small-scale mechanical testing on nuclear materials: bridging the experimental length-scale gap
journal, January 2018

Helium irradiated cavity formation and defect energetics in Ni-based binary single-phase concentrated solid solution alloys
journal, February 2019

Cracking behavior of helium-irradiated small-volume copper
journal, April 2018

TEM in situ micropillar compression tests of ion irradiated oxide dispersion strengthened alloy
journal, January 2017

Linking microstructure and local mechanical properties in SiC-SiC fiber composite using micromechanical testing
journal, April 2019

Response of 14YWT alloys under neutron irradiation: A complementary study on microstructure and mechanical properties
journal, April 2019

SRIM – The stopping and range of ions in matter (2010)
journal, June 2010

Plasticity of Micrometer-Scale Single Crystals in Compression
journal, August 2009

Size dependence of mechanical properties of gold at the micron scale in the absence of strain gradients
journal, April 2005

Experimental studies of helium in metals
journal, January 1983

Self-organization of helium precipitates into elongated channels within metal nanolayers
journal, November 2017

Defect structures and hardening mechanisms in high dose helium ion implanted Cu and Cu/Nb multilayer thin films
journal, May 2012

Interface enabled defects reduction in helium ion irradiated Cu/V nanolayers
journal, December 2010

Radiation induced nanovoid shrinkage in Cu at room temperature: An in situ study
journal, June 2019

Mechanisms of helium interaction with radiation effects in metals and alloys: A review
journal, November 1983

Sample Dimensions Influence Strength and Crystal Plasticity
journal, August 2004

Mechanical annealing and source-limited deformation in submicrometre-diameter Ni crystals
journal, December 2007

In situ nanocompression testing of irradiated copper
journal, June 2011

Micro-compression testing: A critical discussion of experimental constraints
journal, April 2009

Intrinsic-extrinsic size effect relationship for micromechanical tests
journal, March 2019

Helium Implantation Effects on the Compressive Response of Cu Nanopillars
journal, November 2012

Dislocation nucleation governed softening and maximum strength in nano-twinned metals
journal, April 2010

Tensile strength and work hardening of ultrafine‐grained high‐purity copper
journal, August 1975

High-strength sputter-deposited Cu foils with preferred orientation of nanoscale growth twins
journal, April 2006

Work hardening of ultrafine-grained copper with nanoscale twins
journal, July 2007

Epitaxial nanotwinned Cu films with high strength and high conductivity
journal, August 2008

Tensile behavior of columnar grained Cu with preferentially oriented nanoscale twins
journal, October 2011

Fabrication and Characterization of (111)-Oriented and Nanotwinned Cu by Dc Electrodeposition
journal, September 2012

Plastic anisotropy and associated deformation mechanisms in nanotwinned metals
journal, January 2013

Length-scale-dependent deformation mechanisms in incoherent metallic multilayered composites
journal, October 2005

Detwinning mechanisms for growth twins in face-centered cubic metals
journal, April 2010

Insight into the impact of nanovoids on the electrical and mechanical properties of nanotwinned copper films
journal, August 2017