期刊
INTERNATIONAL JOURNAL OF PLASTICITY
卷 50, 期 -, 页码 146-157出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijplas.2013.04.006
关键词
Dislocations; Elastic material; Electron microscopy; Numerical algorithms
资金
- U.S. National Science Foundation [0936340(OSU), 0936337(BYU)]
A novel method of micromechanical stereoinference is reported which yields components and gradients of Nye's GND tensor which are inaccessible by surface EBSD. In particular, it determines the Nye's tensor gradients going into the sample bulk. The method overcomes limitations imposed by metal's electron opacity by combining experimentally-accessible Nye's tensor components and measured infinitesimal elastic distortion tensors with a solution to the underlying stress equilibrium equations. The full Nye's tensor can be transformed into a crystal coordinate frame and interpreted in the context of slip systems, a more physical sense than in the sample or experimental frame. A demonstration of the method is given for a simulated microstructure. The method is largely robust to random experimental noise but may be sensitive to pattern-center errors. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据