In situ high-energy X-ray diffraction study of tensile deformation of neutron-irradiated polycrystalline Fe-9%Cr alloy

Zhang, Xuan; Li, Meimei; Park, Jun -Sang; Kenesei, Peter; Almer, Jonathan; Xu, Chi; Stubbins, James F.

doi:10.1016/j.actamat.2016.12.038

Title: In situ high-energy X-ray diffraction study of tensile deformation of neutron-irradiated polycrystalline Fe-9%Cr alloy

Abstract

The effect of neutron irradiation on tensile deformation of a Fe-9wt.%Cr alloy was investigated using in situ high-energy synchrotron X-ray diffraction during room-temperature uniaxial tensile tests. New insights into the deformation mechanisms were obtained through the measurements of lattice strain evolution and the analysis of diffraction peak broadening using the modified Williamson-Hall method. Two neutron-irradiated specimens, one irradiated at 300 °C to 0.01 dpa and the other at 450 °C to 0.01dpa, were tested along with an unirradiated specimen. The macroscopic stress–strain curves of the irradiated specimens showed increased strength, reduced ductility and work-hardening exponent compared to the unirradiated specimen. The evolutions of the lattice strain, the dislocation density and the coherent scattering domain size in the deformation process revealed different roles of the submicroscopic defects in the 300°C/0.01 dpa specimen and the TEM-visible nanometer-sized dislocation loops in the 450°C/0.01 dpa specimen: submicroscopic defects extended the linear work hardening stage (stage II) to a higher strain, while irradiation-induced dislocation loops were more effective in dislocation pinning. Lastly, while the work hardening rate of stage II was unaffected by irradiation, significant dynamic recovery in stage III in the irradiated specimens led to the early onset of necking without stage IV asmore » observed in the unirradiated specimen.« less

Authors:

^[1]; Li, Meimei ^[1]; Park, Jun -Sang ^[1]; Kenesei, Peter ^[1]; Almer, Jonathan ^[1]; Xu, Chi ^[2]; Stubbins, James F. ^[3]

Argonne National Lab. (ANL), Lemont, IL (United States)
Univ. of Florida, Gainesville, FL (United States)
Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)

Publication Date:: Fri Dec 30 00:00:00 EST 2016

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Nuclear Energy (NE). Nuclear Energy Enabling Technologies (NEET)

OSTI Identifier:: 1339442

Alternate Identifier(s):: OSTI ID: 1397787

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Volume: 126; Journal Issue: C; Journal ID: ISSN 1359-6454

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; neutron irradiation; in situ X-ray diffraction; tensile deformation; work hardening stages

Citation Formats


                    Zhang, Xuan, Li, Meimei, Park, Jun -Sang, Kenesei, Peter, Almer, Jonathan, Xu, Chi, and Stubbins, James F. In situ high-energy X-ray diffraction study of tensile deformation of neutron-irradiated polycrystalline Fe-9%Cr alloy.  United States: N. p., 2016. 
Web.  doi:10.1016/j.actamat.2016.12.038.

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                    Zhang, Xuan, Li, Meimei, Park, Jun -Sang, Kenesei, Peter, Almer, Jonathan, Xu, Chi, & Stubbins, James F. In situ high-energy X-ray diffraction study of tensile deformation of neutron-irradiated polycrystalline Fe-9%Cr alloy.  United States.  https://doi.org/10.1016/j.actamat.2016.12.038

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                    Zhang, Xuan, Li, Meimei, Park, Jun -Sang, Kenesei, Peter, Almer, Jonathan, Xu, Chi, and Stubbins, James F. Fri .  
"In situ high-energy X-ray diffraction study of tensile deformation of neutron-irradiated polycrystalline Fe-9%Cr alloy".  United States.  https://doi.org/10.1016/j.actamat.2016.12.038.  https://www.osti.gov/servlets/purl/1339442.

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@article{osti_1339442,

  title        = {In situ high-energy X-ray diffraction study of tensile deformation of neutron-irradiated polycrystalline Fe-9%Cr alloy},

  author       = {Zhang, Xuan and Li, Meimei and Park, Jun -Sang and Kenesei, Peter and Almer, Jonathan and Xu, Chi and Stubbins, James F.},

  abstractNote = {The effect of neutron irradiation on tensile deformation of a Fe-9wt.%Cr alloy was investigated using in situ high-energy synchrotron X-ray diffraction during room-temperature uniaxial tensile tests. New insights into the deformation mechanisms were obtained through the measurements of lattice strain evolution and the analysis of diffraction peak broadening using the modified Williamson-Hall method. Two neutron-irradiated specimens, one irradiated at 300 °C to 0.01 dpa and the other at 450 °C to 0.01dpa, were tested along with an unirradiated specimen. The macroscopic stress–strain curves of the irradiated specimens showed increased strength, reduced ductility and work-hardening exponent compared to the unirradiated specimen. The evolutions of the lattice strain, the dislocation density and the coherent scattering domain size in the deformation process revealed different roles of the submicroscopic defects in the 300°C/0.01 dpa specimen and the TEM-visible nanometer-sized dislocation loops in the 450°C/0.01 dpa specimen: submicroscopic defects extended the linear work hardening stage (stage II) to a higher strain, while irradiation-induced dislocation loops were more effective in dislocation pinning. Lastly, while the work hardening rate of stage II was unaffected by irradiation, significant dynamic recovery in stage III in the irradiated specimens led to the early onset of necking without stage IV as observed in the unirradiated specimen.},

  doi          = {10.1016/j.actamat.2016.12.038},

  journal      = {Acta Materialia},

  number       = C,

  volume       = 126,

  place        = {United States},

  year         = {Fri Dec 30 00:00:00 EST 2016},

  month        = {Fri Dec 30 00:00:00 EST 2016}

}

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https://doi.org/10.1016/j.actamat.2016.12.038

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Similar Records

Title: In situ high-energy X-ray diffraction study of tensile deformation of neutron-irradiated polycrystalline Fe-9%Cr alloy

Abstract

Citation Formats

On the effects of irradiation and helium on the yield stress changes and hardening and non-hardening embrittlement of ∼8Cr tempered martensitic steels: Compilation and analysis of existing data journal, September 2006

Materials challenges in nuclear energy journal, February 2013

Post-irradiation deformation in a Fe-9%Cr alloy journal, July 2001

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Observation of interaction behavior between microstructural defects and dislocation by in situ strain TEM examination journal, November 2013

Tensile properties and microstructure of 590 MeV proton-irradiated pure Fe and a Fe–Cr alloy journal, December 2000

Irradiation hardening of ferritic steels: Effect of composition journal, March 1991

Mechanical properties changes of Fe-Cr alloys by fast neutron irradiation journal, January 1982

Embedded atom computer simulation of lattice distortion and dislocation core structure and mobility in FeCr alloys journal, January 1996

Atomistic simulation of the influence of Cr on the mobility of the edge dislocation in Fe(Cr) alloys journal, October 2011

Modeling of radiation hardening in ferritic/martensitic steel using multi-scale approach journal, February 2012

Microchemical effects in irradiated Fe–Cr alloys as revealed by atomistic simulation journal, November 2013

Plastic deformation of ferritic grains in presence of ODS particles and irradiation-induced defect clusters: A 3D dislocation dynamics simulation study journal, August 2011

Mechanisms of radiation strengthening in Fe–Cr alloys as revealed by atomistic studies journal, November 2013

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A dislocation dynamics study of the transition from homogeneous to heterogeneous deformation in irradiated body-centered cubic iron journal, May 2012

Plastic instability in polycrystalline metals after low temperature irradiation journal, April 2004

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

Physics and phenomenology of strain hardening: the FCC case journal, January 2003

Kinetics of flow and strain-hardening journal, November 1981

Investigation of deformation and microstructural evolution in Grade 91 ferritic–martensitic steel by in situ high-energy X-rays journal, January 2014

Dislocation evolution during tensile deformation in ferritic–martensitic steels revealed by high-energy X-rays journal, September 2014

The evolution of internal stress and dislocation during tensile deformation in a 9Cr ferritic/martensitic (F/M) ODS steel investigated by high-energy X-rays journal, December 2015

High energy X-ray diffraction study of the relationship between the macroscopic mechanical properties and microstructure of irradiated HT-9 steel journal, July 2016

High-energy synchrotron x-ray techniques for studying irradiated materials journal, March 2015

Analyzing the orientation dependence of stresses in polycrystals using vertices of the single crystal yield surface and crystallographic fibers of orientation space journal, January 2010

X-ray line broadening from filed aluminium and wolfram journal, January 1953

The effect of dislocation contrast on x‐ray line broadening: A new approach to line profile analysis journal, November 1996

Tensile twin nucleation events coupled to neighboring slip observed in three dimensions journal, September 2014

Neutron irradiation effects in Fe and Fe-Cr at 300 °C journal, June 2016

Investigation of radiation damage by X-ray diffraction journal, October 1994

Competing processes in reactions between an edge dislocation and dislocation loops in a body-centred cubic metal journal, May 2010

Radiation hardening revisited: role of intracascade clustering journal, October 1997

The determination of a continuum mechanics equivalent elastic strain from the analysis of multiple diffraction peaks journal, October 2004

In situ and tomographic observations of defect free channel formation in ion irradiated stainless steels journal, November 2012

Interaction Analysis between Edge Dislocation and Self Interstitial Type Dislocation Loop in BCC Iron Using Molecular Dynamics journal, January 2005

Hall–Petch relation and boundary strengthening journal, October 2004

Stage IV work hardening in cell forming materials, part II: A new mechanism journal, December 1996

A dislocation-based model for all hardening stages in large strain deformation journal, September 1998

Demonstration of a chamber for strain mapping of steel specimens under mechanical load in a hydrogen environment by synchrotron radiation journal, June 2018

Helium bubble evolution and deformation of single crystal α-Fe journal, September 2018

In situ high-energy X-ray diffraction mapping of Lüders band propagation in medium-Mn transformation-induced plasticity steels journal, October 2018

On the effects of irradiation and helium on the yield stress changes and hardening and non-hardening embrittlement of ∼8Cr tempered martensitic steels: Compilation and analysis of existing data
journal, September 2006

Materials challenges in nuclear energy
journal, February 2013

Post-irradiation deformation in a Fe-9%Cr alloy
journal, July 2001

Effect of Cr on the mechanical properties and microstructure of Fe–Cr model alloys after n-irradiation
journal, June 2008

Observation of interaction behavior between microstructural defects and dislocation by in situ strain TEM examination
journal, November 2013

Tensile properties and microstructure of 590 MeV proton-irradiated pure Fe and a Fe–Cr alloy
journal, December 2000

Irradiation hardening of ferritic steels: Effect of composition
journal, March 1991

Mechanical properties changes of Fe-Cr alloys by fast neutron irradiation
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Embedded atom computer simulation of lattice distortion and dislocation core structure and mobility in FeCr alloys
journal, January 1996

Atomistic simulation of the influence of Cr on the mobility of the edge dislocation in Fe(Cr) alloys
journal, October 2011

Modeling of radiation hardening in ferritic/martensitic steel using multi-scale approach
journal, February 2012

Microchemical effects in irradiated Fe–Cr alloys as revealed by atomistic simulation
journal, November 2013

Plastic deformation of ferritic grains in presence of ODS particles and irradiation-induced defect clusters: A 3D dislocation dynamics simulation study
journal, August 2011

Mechanisms of radiation strengthening in Fe–Cr alloys as revealed by atomistic studies
journal, November 2013

Mobility of dislocations in thermal aged and irradiated Fe–Cr alloys
journal, April 2009

A dislocation dynamics study of the transition from homogeneous to heterogeneous deformation in irradiated body-centered cubic iron
journal, May 2012

Plastic instability in polycrystalline metals after low temperature irradiation
journal, April 2004

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

Physics and phenomenology of strain hardening: the FCC case
journal, January 2003

Kinetics of flow and strain-hardening
journal, November 1981

Investigation of deformation and microstructural evolution in Grade 91 ferritic–martensitic steel by in situ high-energy X-rays
journal, January 2014

Dislocation evolution during tensile deformation in ferritic–martensitic steels revealed by high-energy X-rays
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High-energy synchrotron x-ray techniques for studying irradiated materials
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Analyzing the orientation dependence of stresses in polycrystals using vertices of the single crystal yield surface and crystallographic fibers of orientation space
journal, January 2010

X-ray line broadening from filed aluminium and wolfram
journal, January 1953

The effect of dislocation contrast on x‐ray line broadening: A new approach to line profile analysis
journal, November 1996

Tensile twin nucleation events coupled to neighboring slip observed in three dimensions
journal, September 2014

Neutron irradiation effects in Fe and Fe-Cr at 300 °C
journal, June 2016

Investigation of radiation damage by X-ray diffraction
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Competing processes in reactions between an edge dislocation and dislocation loops in a body-centred cubic metal
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Radiation hardening revisited: role of intracascade clustering
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The determination of a continuum mechanics equivalent elastic strain from the analysis of multiple diffraction peaks
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In situ and tomographic observations of defect free channel formation in ion irradiated stainless steels
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Interaction Analysis between Edge Dislocation and Self Interstitial Type Dislocation Loop in BCC Iron Using Molecular Dynamics
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Hall–Petch relation and boundary strengthening
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Stage IV work hardening in cell forming materials, part II: A new mechanism
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Demonstration of a chamber for strain mapping of steel specimens under mechanical load in a hydrogen environment by synchrotron radiation
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Helium bubble evolution and deformation of single crystal α-Fe
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