DIRECTIONAL ULTRASONIC BACKSCATTERING IN POLYCRYSTALS WITH ELONGATED GRAINS

被引：2
|
作者：
Lobkis, O. I. [1 ]
Yang, L. [1 ]
Li, J. [1 ]
Rokhlin, S. I. [1 ]
机构：
[1] Ohio State Univ, Dept Mat Sci & Engn, Edison Joining Technol Ctr, Columbus, OH 43221 USA
来源：
REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 31A AND 31B | 2012年 / 1430卷
关键词：
Ultrasonic; Polycrystals; Grains; Backscattering (BS); Backscattering Amplitude (BA);
D O I：
10.1063/1.4716379
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An analytical solution for a three dimensional integral representation of the backscattering (BS) coefficient in polycrystals with elongated grains is obtained. The theory was applied to evaluation of experimental data in Ti alloy with duplex microstructure, which consists of micro-textured regions (MTR) and smaller crystallites. Experiment shows that for microstructure characterization there is significant advantage in using the directional ratios of backscattering coefficients instead their absolute values for data analysis.
引用
收藏
页码：1389 / 1396
页数：8
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