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

Grain boundary velocity and curvature are not correlated in Ni polycrystals

Journal Article · · Science
 [1];  [2];  [3];  [4];  [5];  [1];  [6];  [1]
  1. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  2. Carnegie Mellon Univ., Pittsburgh, PA (United States); Morgan Stanley, New York, NY (United States)
  3. Carnegie Mellon Univ., Pittsburgh, PA (United States); RJ Lee Group, Inc., Monroeville, PA (United States)
  4. Carnegie Mellon Univ., Pittsburgh, PA (United States); Blue River Technology, Sunnyvale, CA (United States)
  5. Carnegie Mellon Univ., Pittsburgh, PA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Ulm University (Germany)

Grain boundary velocity has been believed to be correlated to curvature, and this is an important relationship for modeling how polycrystalline materials coarsen during annealing. We determined the velocities and curvatures of approximately 52,000 grain boundaries in a nickel polycrystal using three-dimensional orientation maps measured by high-energy diffraction microscopy before and after annealing at 800°C. Unexpectedly, the grain boundary velocities and curvatures were uncorrelated. Instead, we found strong correlations between the boundary velocity and the five macroscopic parameters that specify grain boundary crystallography. The sensitivity of the velocity to grain boundary crystallography might be the result of defect-mediated grain boundary migration or the anisotropy of the grain boundary energy. The absence of a correlation between velocity and curvature likely results from the constraints imposed by the grain boundary network and implies the need for a new model for grain boundary migration.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Grant/Contract Number:
AC52-07NA27344; AC02-06CH11357
OSTI ID:
1866159
Alternate ID(s):
OSTI ID: 1825747
OSTI ID: 1826780
Report Number(s):
LLNL-JRNL-834657; 1037825
Journal Information:
Science, Journal Name: Science Journal Issue: 6564 Vol. 374; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

References (38)

A Study of Grain Shape in an Aluminum Alloy and other Applications of Stereoscopic Microradiography journal July 1952
Analysis of Experimental Grain Boundary Distributions Based on Boundary-Space Metrics journal May 2014
II—mean curvature and weighted mean curvature journal July 1992
Mobility of 〈111〉 tilt grain boundaries in the vicinity of the special misorientation ∑=7 in bicrystals of pure aluminium journal February 1995
Grain size in the lower mantle: constraints from numerical modeling of grain growth in two-phase systems journal February 2002
Grain boundary migration: misorientation dependence journal January 2001
Measurements of grain boundary mobility during recrystallization of a single-phase aluminium alloy journal May 1999
Survey of computed grain boundary properties in face-centered cubic metals: I. Grain boundary energy journal August 2009
Survey of computed grain boundary properties in face-centered cubic metals—II: Grain boundary mobility journal August 2009
Relative grain boundary area and energy distributions in nickel journal August 2009
Grain growth in four dimensions: A comparison between simulation and experiment journal October 2014
Observation of annealing twin nucleation at triple lines in nickel during grain growth journal October 2015
The five-parameter grain boundary curvature distribution in an austenitic and ferritic steel journal January 2017
The role of the interface stiffness tensor on grain boundary dynamics journal October 2018
Three-dimensional observations of grain volume changes during annealing of polycrystalline Ni journal April 2019
Grain boundary mobilities in polycrystals journal June 2020
On the temperature dependence of grain boundary mobility journal August 2020
Grain-boundary kinetics: A unified approach journal October 2018
Comparing grain boundary energies in face-centered cubic metals: Al, Au, Cu and Ni journal November 2010
Grain growth stagnation in thin films due to shear-coupled grain boundary migration journal April 2020
Recrystallization boundary migration in the 3D heterogeneous microstructure near a hardness indent journal December 2021
Effect of impurities on grain growth in cold ice sheets journal January 2006
Computing the mobility of grain boundaries journal January 2006
Effect of interfacial structural phase transitions on the coupled motion of grain boundaries: A molecular dynamics study journal May 2014
Direct observation of grain rotations during coarsening of a semisolid Al–Cu alloy journal September 2016
Grain-boundary topological phase transitions journal December 2020
Bridging Simulations and Experiments in Microstructure Evolution journal January 2003
Importance of outliers: A three-dimensional study of coarsening in α -phase iron journal June 2019
Discussion of the representation of intercrystalline misorientation in cubic materials journal July 1990
Intrinsic and Extrinsic Size Effects in Fine-Grained Morphotropic-Phase-Boundary Lead Zirconate Titanate Ceramics journal March 1998
Strengthening Materials by Engineering Coherent Internal Boundaries at the Nanoscale journal April 2009
How Grain Growth Stops: A Mechanism for Grain-Growth Stagnation in Pure Materials journal May 2010
Dense dislocation arrays embedded in grain boundaries for high-performance bulk thermoelectrics journal April 2015
Impact of microstructure on local carrier lifetime in perovskite solar cells journal April 2015
Making ultrastrong steel tough by grain-boundary delamination journal May 2020
High-Energy X-Ray Diffraction Microscopy in Materials Science journal July 2020
Tests of microstructure reconstruction by forward modeling of high energy X-ray diffraction microscopy data journal June 2010
DREAM.3D: A Digital Representation Environment for the Analysis of Microstructure in 3D journal April 2014

Similar Records

Grain assemblage in polycrystals
Journal Article · Wed Jun 01 00:00:00 EDT 1994 · Acta Metallurgica et Materialia; (United States) · OSTI ID:7029387

Study of the interaction of pores with grain boundaries
Conference · · TMS (The Metallurgical Society) Paper Selection; (USA) · OSTI ID:5443230