Characterization of High Temperature Mechanical Properties Using Laser Ultrasound

被引：1

作者：

Hurley, David H. ^{[1
]}

Reese, Stephen J. ^{[1
]}

Kennedy, Rory ^{[2
]}

Farzbod, Farhad ^{[1
]}

Wright, Richard N. ^{[1
]}

机构：

[1] Idaho Natl Lab, Dept Mat Sci & Engn, POB 1625, Idaho Falls, ID 83415 USA

[2] Idaho Natl Lab, Dept Fundamental Fuels Properties, Idaho Falls, ID 83415 USA

来源：

INTERNATIONAL SYMPOSIUM ON HIGH POWER LASER ABLATION 2012 | 2012年 / 1464卷

关键词：

Laser ultrasound; grain microstructure; high temperature; mechanical properties; MICROSTRUCTURE;

D O I：

10.1063/1.4739904

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laser ultrasound is employed to assess high temperature mechanical properties. A pulsed laser is used for broadband ultrasound generation, and a laser interferometer is used to detect ultrasonic vibrations. For this investigation both time and frequency domain studies are conducted. For the time domain study we measure the modulus of elasticity and the shear modulus of a nickel alloy up to 1000 degrees C. For the frequency domain study we measure ultrasonic attenuation of a rolled copper sample during high temperature annealing. It is shown that attenuation is associated with grain alignment during the recrystallization transformation.

引用

页码：497 / 503

页数：7

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