Measurement of the components of plastic displacement gradients in three dimensions

S.F. Nielsen; F. Beckmann; H.F. Poulsen; J.A. Wert

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Measurement of the components of plastic displacement gradients in three dimensions

机译：三维三维位移梯度分量的测量

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摘要

A method for non-destructive characterization of plastic deformation in bulk materials is presented. The method is based on X-ray absorption contrast micro-tomography using X-rays from a synchrotron radiation source. The method can be applied to materials that contain marker particles, which have an atomic number significantly different from that of the matrix material. The size of the marker particles can be 1-2 μm and their positions (x, y, z) are determined as a function of strain. The use of the method is demonstrated by a compression study of an aluminium specimen containing tungsten marker particles.

机译：提出了一种散装材料塑性变形的非破坏性表征方法。该方法基于使用来自同步加速器辐射源的X射线的X射线吸收对比显微断层扫描技术。该方法可以应用于包含标记颗粒的材料，该标记颗粒的原子序数与基体材料的原子序数明显不同。标记颗粒的大小可以是1-2μm，其位置（x，y，z）是应变的函数。该方法的使用通过对包含钨标记颗粒的铝样品的压缩研究得到证明。

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来源
《Materials Science and Engineering. A, Structural Materials》 |2004年第12期|p.336-338|共3页
作者
S.F. Nielsen; F. Beckmann; H.F. Poulsen; J.A. Wert;
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作者单位

Materials Research Department, Riso National Laboratory, 4000 Roskilde, Denmark;

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原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
synchrotron radiation; plastic deformation; X-ray tomography; image analysis;

机译：同步辐射塑性变形X射线断层扫描图像分析;

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机译：弹塑性表面缺陷的三维位移测量

Measurement of the components of plastic displacement gradients in three dimensions

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