Vacancy-controlled ultrastable nanoclusters in nanostructured ferritic alloys

Zhang, Z. W.; Yao, L.; Wang, X. -L.; Miller, M. K.

doi:10.1038/srep10600

Title: Vacancy-controlled ultrastable nanoclusters in nanostructured ferritic alloys

Abstract

A new class of advanced structural materials, based on the Fe-O-vacancy system, has exceptional resistance to high-temperature creep and excellent tolerance to extremely high-dose radiation. Although these remarkable improvements in properties compared to steels are known to be associated with the Y-Ti-O-enriched nanoclusters, the roles of vacancies in facilitating the nucleation of nanoclusters are a long-standing puzzle, due to the experimental difficulties in characterizing vacancies, particularly in-situ while the nanoclusters are forming. We report an experiment study that provides the compelling evidence for the presence of significant concentrations of vacancies in Y-Ti-O-enriched nanoclusters in a nanostructured ferritic alloy using a combination of state-of-the-art atom-probe tomography and in situ small angle neutron scattering. The nucleation of nanoclusters starts from the O-enriched solute clustering with vacancy mediation. The nanoclusters grow with an extremely low growth rate through attraction of vacancies and O:vacancy pairs, leading to the unusual stability of the nanoclusters.

Authors:

Zhang, Z. W. ^[1]; Yao, L. ^[2]; Wang, X. -L. ^[3]; Miller, M. K. ^[2]

Harbin Engineering Univ., Harbin (China); Oak Ridge National Lab., Oak Ridge, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
City Univ. of Hong Kong, Kowloon (Hong Kong)

Publication Date:: Fri May 29 00:00:00 EDT 2015

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1207043

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Scientific Reports

Additional Journal Information:: Journal Volume: 5; Journal ID: ISSN 2045-2322

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; characterization and analytical techniques; metals and alloys; nanoparticles; nanoscale materials

Citation Formats


                    Zhang, Z. W., Yao, L., Wang, X. -L., and Miller, M. K. Vacancy-controlled ultrastable nanoclusters in nanostructured ferritic alloys.  United States: N. p., 2015. 
Web.  doi:10.1038/srep10600.

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                    Zhang, Z. W., Yao, L., Wang, X. -L., & Miller, M. K. Vacancy-controlled ultrastable nanoclusters in nanostructured ferritic alloys.  United States.  https://doi.org/10.1038/srep10600

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                    Zhang, Z. W., Yao, L., Wang, X. -L., and Miller, M. K. Fri .  
"Vacancy-controlled ultrastable nanoclusters in nanostructured ferritic alloys".  United States.  https://doi.org/10.1038/srep10600.  https://www.osti.gov/servlets/purl/1207043.

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@article{osti_1207043,

  title        = {Vacancy-controlled ultrastable nanoclusters in nanostructured ferritic alloys},

  author       = {Zhang, Z. W. and Yao, L. and Wang, X. -L. and Miller, M. K.},

  abstractNote = {A new class of advanced structural materials, based on the Fe-O-vacancy system, has exceptional resistance to high-temperature creep and excellent tolerance to extremely high-dose radiation. Although these remarkable improvements in properties compared to steels are known to be associated with the Y-Ti-O-enriched nanoclusters, the roles of vacancies in facilitating the nucleation of nanoclusters are a long-standing puzzle, due to the experimental difficulties in characterizing vacancies, particularly in-situ while the nanoclusters are forming. We report an experiment study that provides the compelling evidence for the presence of significant concentrations of vacancies in Y-Ti-O-enriched nanoclusters in a nanostructured ferritic alloy using a combination of state-of-the-art atom-probe tomography and in situ small angle neutron scattering. The nucleation of nanoclusters starts from the O-enriched solute clustering with vacancy mediation. The nanoclusters grow with an extremely low growth rate through attraction of vacancies and O:vacancy pairs, leading to the unusual stability of the nanoclusters.},

  doi          = {10.1038/srep10600},

  journal      = {Scientific Reports},

  number       = ,

  volume       = 5,

  place        = {United States},

  year         = {Fri May 29 00:00:00 EDT 2015},

  month        = {Fri May 29 00:00:00 EDT 2015}

}

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Development of an oxide-dispersion-strengthened steel by introducing oxygen carrier compound into the melt aided by a general thermodynamic model
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Title: Vacancy-controlled ultrastable nanoclusters in nanostructured ferritic alloys

Abstract

Citation Formats

Small Au and Pt Clusters at the Anatase TiO 2 (101) Surface: Behavior at Terraces, Steps, and Surface Oxygen Vacancies journal, January 2008

From embryos to precipitates: A study of nucleation and growth in a multicomponent ferritic steel journal, November 2011

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Impact of rapid thermal processing on oxygen precipitation in heavily arsenic and antimony doped Czochralski silicon journal, April 2013

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Small‐angle x‐ray scattering from the surfaces of reversed‐phase silicas: Power‐law scattering exponents of magnitudes greater than four journal, January 1991

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Stability of non-stoichiometric clusters in the MA957 ODS ferrtic alloy journal, October 2011

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Vacancy Mechanism of High Oxygen Solubility and Nucleation of Stable Oxygen-Enriched Clusters in Fe journal, November 2007

Prediction of structural, electronic and elastic properties of Y2Ti2O7 and Y2TiO5 journal, March 2010

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Temperature-dependent elastic anisotropy and mesoscale deformation in a nanostructured ferritic alloy journal, October 2014

Atomic structure of nanoclusters in oxide-dispersion-strengthened steels journal, October 2011

Grown-in defects in silicon produced by agglomeration of vacancies and self-interstitials journal, April 2008

Fabrication and characterization of APT specimens from high dose heavy ion irradiated materials journal, May 2011

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Nanocluster-associated vacancies in nanocluster-strengthened ferritic steel as seen via positron-lifetime spectroscopy
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journal, September 2012

Effects of proton irradiation on nanocluster precipitation in ferritic steel containing fcc alloying additions
journal, April 2012

Morphology, structure, and chemistry of nanoclusters in a mechanically alloyed nanostructured ferritic steel
journal, January 2012

Perspective of ODS alloys application in nuclear environments
journal, December 2002

Precipitation behavior of oxide particles in mechanically alloyed powder of oxide-dispersion-strengthened steel
journal, March 2008

Effect of tin on point defects and oxygen precipitation in Czochralski silicon: Experimental and theoretical studies
journal, March 2013

Tensile and creep properties of an oxide dispersion-strengthened ferritic steel
journal, December 2002

Creep behavior and deformation mechanisms in a nanocluster strengthened ferritic steel
journal, February 2012

Small‐angle x‐ray scattering from the surfaces of reversed‐phase silicas: Power‐law scattering exponents of magnitudes greater than four
journal, January 1991

Grown-in defects in silicon produced by agglomeration of vacancies and self-interstitials
journal, April 2008

Reduction and analysis of SANS and USANS data using IGOR Pro
journal, November 2006

On the role of alloy composition and processing parameters in nanocluster formation and dispersion strengthening in nanostuctured ferritic alloys
journal, January 2009

Three-dimensional atom probe observation of nanoscale titanium-oxygen clustering in an oxide-dispersion-strengthened Fe-12Cr-3W-0.4Ti + Y2O3 ferritic alloy
journal, February 2001

Creep response and deformation processes in nanocluster-strengthened ferritic steels
journal, April 2008

In situ Synchrotron Study of Phase Transformation Behaviors in Bulk Metallic Glass by Simultaneous Diffraction and Small Angle Scattering
journal, December 2003

Vacancy defects and monopole dynamics in oxygen-deficient pyrochlores
journal, April 2014

Stability of non-stoichiometric clusters in the MA957 ODS ferrtic alloy
journal, October 2011

Nanoscale characterisation and clustering mechanism in an Fe–Y2O3 model ODS alloy processed by reactive ball milling and annealing
journal, March 2010

Characterization of precipitates in MA/ODS ferritic alloys
journal, June 2006

Vacancies as a constitutive element for the design of nanocluster-strengthened ferritic steels
journal, November 2008

Vacancy Mechanism of High Oxygen Solubility and Nucleation of Stable Oxygen-Enriched Clusters in Fe
journal, November 2007

Prediction of structural, electronic and elastic properties of Y2Ti2O7 and Y2TiO5
journal, March 2010

Formation mechanism and the role of nanoparticles in Fe-Cr ODS steels developed for radiation tolerance
journal, November 2010

Fabrication and characterization of APT specimens from high dose heavy ion irradiated materials
journal, May 2011

Temperature-dependent elastic anisotropy and mesoscale deformation in a nanostructured ferritic alloy
journal, October 2014

Atomic structure of nanoclusters in oxide-dispersion-strengthened steels
journal, October 2011

Grown-in defects in silicon produced by agglomeration of vacancies and self-interstitials
journal, April 2008

Fabrication and characterization of APT specimens from high dose heavy ion irradiated materials
journal, May 2011

Characterization of Oxide Nano-clusters in Mechanically Alloyed Nickel Alloys
journal, July 2009

Small Au and Pt Clusters at the Anatase TiO ₂ (101) Surface: Behavior at Terraces, Steps, and Surface Oxygen Vacancies
journal, January 2008

Temperature-dependent elastic anisotropy and mesoscale deformation in a nanostructured ferritic alloy
journal, October 2014

Atomic structure of nanoclusters in oxide-dispersion-strengthened steels
journal, October 2011

Electrical and Magnetic Properties of TiO and VO
journal, April 1972

Nucleation of Pd Dimers at Defect Sites of the MgO(100) Surface
journal, March 2004

Development of an oxide-dispersion-strengthened steel by introducing oxygen carrier compound into the melt aided by a general thermodynamic model
journal, December 2016

Investigation of structural models for O–Y and O–Y–Ti clusters in bcc Fe: a density functional theory study
journal, January 2019

Development of an oxide-dispersion-strengthened steel by introducing oxygen carrier compound into the melt aided by a general thermodynamic model
journal, December 2016