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Title: Does sink efficiency unequivocally characterize how grain boundaries impact radiation damage?

Journal Article · · Physical Review Materials

The role of grain boundaries in limiting irradiation damage in nanocrystalline materials is often correlated with the grain boundary sink efficiency. Here, we demonstrate on a tungsten material system (which has very distinct vacancy and interstitial mobilities) that sink efficiency does not unequivocally describe how grain boundaries impact irradiation damage. Rather, it reflects a particular defect diffusion equation that can change if any of the bulk conditions change. Even when denuded zone formation does not occur and grain boundaries have zero sink efficiencies, grain boundaries still impact the performance of nanocrystalline materials under irradiation by acting as a saturable defect storage site. However, denuded zone formation can occur under a necessary requirement of extra defect recombination at the grain boundaries (which, for example, is not possible when vacancy migration does not occur). These insights provide answers to several outstanding questions regarding the sink efficiency of a grain boundary and assist in parametrizing the role of grain boundaries in limiting irradiation damage in nanocrystalline materials.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
89233218CNA000001; SC0008875
OSTI ID:
1511606
Alternate ID(s):
OSTI ID: 1483027
Report Number(s):
LA-UR-18-26334; PRMHAR
Journal Information:
Physical Review Materials, Vol. 2, Issue 11; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (65)

Formation of helium induced nanostructure ‘fuzz’ on various tungsten grades journal September 2010
Simulation of cascades in tungsten–helium journal September 2010
Materials challenges in nuclear energy journal February 2013
Probing grain boundary sink strength at the nanoscale: Energetics and length scales of vacancy and interstitial absorption by grain boundaries in α -Fe journal February 2012
First temperature stage evolution of irradiation-induced defects in tungsten studied by positron annihilation spectroscopy journal May 2008
Efficient Annealing of Radiation Damage Near Grain Boundaries via Interstitial Emission journal March 2010
Microstructure refinement of tungsten by surface deformation for irradiation damage resistance journal January 2014
Characterisation of radiation damage in W and W-based alloys from 2 MeV self-ion near-bulk implantations journal June 2015
Radiation damage in helium ion irradiated nanocrystalline Fe journal June 2012
Ultrafine tungsten as a plasma-facing component in fusion devices: effect of high flux, high fluence low energy helium irradiation journal June 2014
Effect of tube processing methods on microstructure, mechanical properties and irradiation response of 14YWT nanostructured ferritic alloys journal August 2017
Vacancy Diffusion in Binary Ordered Alloys journal January 1958
Defect-interface interactions journal October 2015
Nanostructured metals under irradiation journal June 2009
In situ Evidence of Defect Cluster Absorption by Grain Boundaries in Kr Ion Irradiated Nanocrystalline Ni journal February 2013
Surface damage in ultrafine and multimodal grained tungsten materials induced by low energy helium irradiation journal March 2013
High tensile ductility in a nanostructured metal journal October 2002
Microstructure and mechanical properties of super-strong nanocrystalline tungsten processed by high-pressure torsion journal September 2006
Formation process of tungsten nanostructure by the exposure to helium plasma under fusion relevant plasma conditions journal August 2009
Impact of irradiation on the microstructure of nanocrystalline materials journal August 2004
Displacement cascades and defects annealing in tungsten, Part I: Defect database from molecular dynamics simulations journal July 2015
Loop and void damage during heavy ion irradiation on nanocrystalline and coarse grained tungsten: Microstructure, effect of dpa rate, temperature, and grain size journal May 2018
SRIM – The stopping and range of ions in matter (2010)
  • Ziegler, James F.; Ziegler, M. D.; Biersack, J. P.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 11-12 https://doi.org/10.1016/j.nimb.2010.02.091
journal June 2010
Atomic scale modelling of the primary damage state of irradiated fcc and bcc nanocrystalline metals journal June 2006
Irradiation-tolerant nanostructured ferritic alloys: Transforming helium from a liability to an asset journal September 2010
Non-coherent Cu grain boundaries driven by continuous vacancy loading journal March 2015
Role of atomic structure on grain boundary-defect interactions in Cu journal June 2012
Evidence of a temperature transition for denuded zone formation in nanocrystalline Fe under He irradiation journal October 2016
In situ studies on radiation tolerance of nanotwinned Cu journal June 2016
Frequency factors and isotope effects in solid state rate processes journal January 1957
NIH Image to ImageJ: 25 years of image analysis journal June 2012
High temperature annealing of ion irradiated tungsten journal May 2015
Creep behavior of submicron copper films under irradiation journal June 2017
Tungsten surface evolution by helium bubble nucleation, growth and rupture journal June 2013
Effect of grain boundary character on sink efficiency journal October 2012
Defect distribution in ion-irradiated pure tungsten at different temperatures journal November 2016
Electron damage in zirconium journal April 1983
Design of Radiation Tolerant Materials Via Interface Engineering journal September 2013
MIAMI: Microscope and ion accelerator for materials investigations
  • Hinks, J. A.; van den Berg, J. A.; Donnelly, S. E.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 29, Issue 2 https://doi.org/10.1116/1.3543707
journal March 2011
Influence of interface sink strength on the reduction of radiation-induced defect concentrations and fluxes in materials with large interface area per unit volume journal September 2011
Greater tolerance for nuclear materials journal September 2008
Instability of irradiation induced defects in nanostructured materials journal May 1997
A new algorithm for Monte Carlo simulation of Ising spin systems journal January 1975
The role of grain size in He bubble formation: Implications for swelling resistance journal February 2017
Enhanced radiation tolerance in nanocrystalline MgGa2O4 journal June 2007
In-situ TEM observation of the response of ultrafine- and nanocrystalline-grained tungsten to extreme irradiation environments journal May 2014
Anisotropic radiation-induced segregation in 316L austenitic stainless steel with grain boundary character journal April 2014
Materials research for fusion journal May 2016
Helium bubble formation in ultrafine and nanocrystalline tungsten under different extreme conditions journal March 2015
In-situ TEM/heavy ion irradiation on ultrafine-and nanocrystalline-grained tungsten: Effect of 3 MeV Si, Cu and W ions journal January 2015
In situ study of heavy ion irradiation response of immiscible Cu/Fe multilayers journal July 2016
The relationship between grain boundary structure, defect mobility and grain boundary sink efficiency journal March 2015
Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungsten journal February 2017
Enhanced ion irradiation resistance of bulk nanocrystalline TiNi alloy journal November 2008
Direct Observation of Sink-Dependent Defect Evolution in Nanocrystalline Iron under Irradiation journal May 2017
Long-Range Migration of Self-Interstitial Atoms in Tungsten journal December 1975
Accumulation and recovery of defects in ion-irradiated nanocrystalline gold journal September 2001
A review of recent theoretical developments in the understanding of the migration of helium in metals and its interaction with lattice defects journal January 1977
Vacancy Diffusion in Ordered Alloys journal February 1959
Vacancy defect mobilities and binding energies obtained from annealing studies journal February 1978
Structural phase transformations in metallic grain boundaries journal May 2013
Non-random walk diffusion enhances the sink strength of semicoherent interfaces journal January 2016
Interfaces in Crystalline Materials and Surfaces and Interfaces of Solid Materials journal September 1996
In-situ TEM studies of 150 keV W+ ion irradiated W and W-alloys: Damage production and microstructural evolution journal June 2016
Structure and metastability of mesoscopic vacancy and interstitial loop defects in iron and tungsten journal August 2008