Evolution equations and size distributions in nanocrystalline grain growth
Evolution equations and size distributions in nanocrystalline grain growth
复制标题
纳米晶粒生长的演化方程和尺寸分布
DOI:
10.1016/j.actamat.2011.03.048
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发表时间:
2011
期刊:
影响因子:
9.4
通讯作者:
Zöllner D.
中科院分区:
文献类型:
--
作者:
P. Streitenberger;Zöllner D.
Size effects observed in nanocrystalline grain growth are modelled by attributing a specific energy and finite mobility to each structural feature of a polyhedral grain. By considering grain growth as a dissipative process that is driven by the reduction in the Gibbs free interface, edge and vertex energy, a general grain evolution equation is derived that can be divided into nine types of possible growth kinetics. The corresponding self-similar grain size distributions are derived and compared with results from modified Monte Carlo Potts model simulations taking into account size effects in triple and quadruple junction limited grain growth.
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