Experimental verification of Foreman dislocation model |
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Authors: | Zhao Chun-Wang Xing Yong-Ming Bai Pu-Cun |
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Affiliation: | College of Science, Inner Mongolia University of Technology, Hohhot 010051, China; College of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China |
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Abstract: | We present a strain analysis of an edge dislocation core, and adetailed discussion of the Foreman dislocation model. In order toexamine the model, the quantitative measurement of strain fieldaround an edge dislocation in aluminum is performed, andhigh-resolution transmission electron microscopy and geometric phaseanalysis are employed to map the strain field of the edgedislocation core in aluminum. The strain measurements are comparedwith the Foreman dislocation model, showing that they are in goodagreement with each other when We present a strain analysis of an edge dislocation core, and adetailed discussion of the Foreman dislocation model. In order toexamine the model, the quantitative measurement of strain fieldaround an edge dislocation in aluminum is performed, andhigh-resolution transmission electron microscopy and geometric phaseanalysis are employed to map the strain field of the edgedislocation core in aluminum. The strain measurements are comparedwith the Foreman dislocation model, showing that they are in goodagreement with each other when $0.7 le a le 1.5$. |
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Keywords: | dislocation strain high-resolution transmission electron microscopy geometric phaseanalysis |
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