|About this Abstract
||2010 TMS Annual Meeting & Exhibition
||Computational Thermodynamics and Kinetics
||Molecular Dynamics Simulation of Grain Growth in 3D Nanograined Ni
||Stephen M. Foiles, Elizabeth A. Holm
|On-Site Speaker (Planned)
||Stephen M. Foiles
Grain growth is one of the fundamental phenomena in materials processing. There is current interest in potential differences in grain growth in nanograined materials compared to conventional materials. Molecular dynamics simulations of the grain growth in a fully 3D nanocrystalline sample have been performed at a variety of temperatures and system sizes. It is observed that a high density of twin boundaries is formed during the growth process consistent with recent experimental findings. The grain growth kinetics are observed to obey the conventional parabolic time dependence until a temperature dependent stagnation is observed. The origin of this stagnation is discussed.
Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC0494AL85000.
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