Nondestructive Evaluation of Thermal Aging in Al6061 Alloy by Measuring Acoustic Nonlinearity of Laser-Generated Surface Acoustic Waves

The structures in high-temperature environments are prone to undergo hardening and embrittlement as a result of thermal aging; this can cause variations in their mechanical properties. Because these changes occur at the microstructural level, it is difficult to evaluate them through linear ultrasoni...

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Bibliographic Details
Main Authors: Jihyun Jun, Hogeon Seo, Kyung-Young Jhang
Format: Article
Language:English
Published: MDPI AG 2019-12-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/10/1/38