MONITORING MATERIAL GRAIN-SIZE BY LASER-GENERATED ULTRASOUND

被引：10

作者：

AHARONI, A ^{[1
]}

TUR, M ^{[1
]}

JASSBY, KM ^{[1
]}

机构：

[1] TEL AVIV UNIV, FAC ENGN, ULTRASON & NDT LAB, IL-69978 TEL AVIV, ISRAEL

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 27期

关键词：

D O I：

10.1063/1.105671

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A noncontact, nondestructive, laser-based method for remote monitoring of material grain size is described. A surface acoustic wave surge, generated in the material under test by a short, high-power laser pulse, is detected optically. The leading-edge rise time of the acoustic signal is found to relate to the material grain size through frequency-dependent scattering. In assuming a Rayleigh scattering model, a good correlation with metallurgical measurements is obtained in steel specimens.

引用

页码：3530 / 3532

页数：3

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