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http://dx.doi.org/10.3795/KSME-A.2005.29.2.232

A Study on the Correlations Between Ultrasonic Parameters and Fracture Toughness  

Kim Jeong-Pyo (삼성전기 DM사업부)
Park Jae-Sil (성균관대학교 산업설비안전성평가연구센터)
Bae Bong-Kook (성균관대학교 기계공학부)
Seok Chang-Sung (성균관대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.29, no.2, 2005 , pp. 232-238 More about this Journal
Abstract
In this study the four classes of the thermally aged 1Cr-1Mo-0.25V specimens were prepared using an artificially accelerated aging method. Ultrasonic tests were performed to get the correlation with fracture toughness. The modified theoretical Vary's equation, considering nonlinear response due to material degradation, was proposed for the correlations between ultrasonic parameters and fracture toughness. Experimental results indicate that ultrasonic attenuation coefficient, velocity and nonlinear parameters produce the correlations with fracture toughness and yield strength.
Keywords
Ultrasonic Parameter; Fracture Toughness; Non-linear Parameter; Attenuation Coefficient;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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