Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Irradiation-induced grain boundary facet motion: In situ observations and atomic-scale mechanisms

Journal Article · · Science Advances

Metals subjected to irradiation environments undergo microstructural evolution and concomitant degradation, yet the nanoscale mechanisms for such evolution remain elusive. Here, we combine in situ heavy ion irradiation, atomic resolution microscopy, and atomistic simulation to elucidate how radiation damage and interfacial defects interplay to control grain boundary (GB) motion. While classical notions of boundary evolution under irradiation rest on simple ideas of curvature-driven motion, the reality is far more complex. Focusing on an ion-irradiated Pt Σ3 GB, we show how this boundary evolves by the motion of 120° facet junctions separating nanoscale {112} facets. Our analysis considers the short- and mid-range ion interactions, which roughen the facets and induce local motion, and longer-range interactions associated with interfacial disconnections, which accommodate the intergranular misorientation. We suggest how climb of these disconnections could drive coordinated facet junction motion. These findings emphasize that both local and longer-range, collective interactions are important to understanding irradiation-induced interfacial evolution.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003525
OSTI ID:
1883185
Report Number(s):
SAND2022-5413J; 705527
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 23 Vol. 8; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

References (57)

The Stopping and Range of Ions in Matter book January 1985
In situ TEM investigation of self-ion irradiation of nanoporous gold journal January 2019
In Situ Studies on the Irradiation-Induced Twin Boundary-Defect Interactions in Cu journal August 2017
In-situ TEM study of dislocation-twin boundaries interaction in nanotwinned Cu films journal September 2011
Interplay Between Grain Boundaries and Radiation Damage journal March 2019
Recent Studies on the Microstructural Response of Nanotwinned Metals to In Situ Heavy Ion Irradiation journal November 2019
Observations of roughening/de-faceting phase transitions in grain boundaries journal August 1989
Vacancy defect mobilities and binding energies obtained from annealing studies journal February 1978
Phase stability of nanostructured materials under heavy ion irradiation journal January 1995
Accumulation and recovery of defects in ion-irradiated nanocrystalline gold journal September 2001
Dislocation emission at junctions between Σ=3 grain boundaries in gold thin films journal June 2002
Steps, dislocations and disconnections as interface defects relating to structure and phase transformations journal December 1996
Detwinning mechanisms for growth twins in face-centered cubic metals journal April 2010
The role of disconnections in deformation-coupled grain boundary migration journal September 2014
Identification of dominant damage accumulation processes at grain boundaries during irradiation in nanocrystalline α-Fe: A statistical study journal May 2016
Defect character at grain boundary facet junctions: Analysis of an asymmetric Σ = 5 grain boundary in Fe journal February 2017
Superior twin stability and radiation resistance of nanotwinned Ag solid solution alloy journal June 2018
The role of the interface stiffness tensor on grain boundary dynamics journal October 2018
Helium irradiation induced ultra-high strength nanotwinned Cu with nanovoids journal September 2019
Frenkel pair accumulation induced crystallization of amorphous MgAl2O4 journal August 2008
In situ probing of the evolution of irradiation-induced defects in copper journal August 2013
Concurrent in situ ion irradiation transmission electron microscope journal November 2014
Defect-interface interactions journal October 2015
Radiation damage in nanostructured materials journal July 2018
Grain-boundary kinetics: A unified approach journal October 2018
In situ studies of irradiation-induced twin boundary migration in nanotwinned Ag journal September 2013
Radiation induced detwinning in nanotwinned Cu journal March 2017
Reconciling grain growth and shear-coupled grain boundary migration journal November 2017
Improving atomic displacement and replacement calculations with physically realistic damage models journal March 2018
Direct Observation of Sink-Dependent Defect Evolution in Nanocrystalline Iron under Irradiation journal May 2017
Influence of interfaces on the storage of ion-implanted He in multilayered metallic composites journal December 2005
A thermal spike model of grain growth under irradiation journal January 2008
Ion‐bombardment‐enhanced grain growth in germanium, silicon, and gold thin films journal September 1988
Unraveling irradiation induced grain growth with in situ transmission electron microscopy and coordinated modeling journal November 2015
Examining the influence of grain size on radiation tolerance in the nanocrystalline regime journal April 2018
Characterizing single isolated radiation-damage events from molecular dynamics via virtual diffraction methods journal April 2018
Interpretation of radiation damage in platinum.—I. Damage curves journal January 1976
Microstructural study of epitaxial platinum and Permalloy/platinum films grown on (0001) sapphire journal August 2001
Lattice imaging analysis of Σ3 coincidence-site-lattice boundaries in gold journal July 1985
The influence of grain boundary inclination on the structure and energy of σ = 3 grain boundaries in copper journal December 1992
HREM study of a ∑= 3{112} twin boundary in aluminium journal November 1991
Detwinning through migration of twin boundaries in nanotwinned Cu films under in situ ion irradiation journal March 2018
Asymmetric tilt grain boundary structure and energy in copper and aluminium journal September 2007
Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool journal December 2009
Reduced-order atomistic cascade method for simulating radiation damage in metals journal October 2019
Thermal-spike treatment of ion-induced grain growth: Theory and experimental comparison journal February 1993
Highly optimized embedded-atom-method potentials for fourteen fcc metals journal April 2011
Theoretical prediction and direct observation of the 9 R structure in Ag journal July 1992
Atomistic and Lattice Model of a Grain Boundary Defaceting Phase Transition journal June 2004
Finite-Size Effects on the Structure of Grain Boundaries journal October 2004
Molecular Dynamic Simulation of Disorder Induced Amorphization in Pyrochlore journal January 2005
Heterogeneous disconnection nucleation mechanisms during grain boundary migration journal June 2019
How Grain Growth Stops: A Mechanism for Grain-Growth Stagnation in Pure Materials journal May 2010
Grain boundary velocity and curvature are not correlated in Ni polycrystals journal October 2021
Hrtem Observations Of A Σ=3 {112} Bicrystal Boundary In Aluminum journal January 1992
Morphological Evolution of a Fully Faceted Grain Boundary journal January 2000
Irradiation resistance of nanostructured interfaces in Zr–Nb metallic multilayers journal March 2019

Similar Records

The Effect of Grain Boundary Facet Junctions on Segregation and Embrittlement
Journal Article · Wed Feb 28 23:00:00 EST 2024 · Acta Materialia · OSTI ID:2326286

Atomistic Simulations of Helium Clustering and Grain Boundary Reconstruction in Alpha-Iron
Journal Article · Wed Dec 31 23:00:00 EST 2014 · Acta Materialia, 82:275-286 · OSTI ID:1167598