Ultrasonic Nondestructive Evaluation of the Creep Damaged IN738LC Superalloy

Jai Won Byeon; J.H. Song; S.I. Kwun

doi:10.4028/www.scientific.net/MSF.449-452.569

Paper Titles

Effect of Melt Treatment on the Microstructure and Creep-Rupture Behavior of M963 Cast Nickel-Base Superalloy
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Tensile Deformation Behavior of M963 Cast Nickel-Base Superalloy
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Low Cycle Fatigue and Fracture Behavior of Nickel-Base Superalloy CM247LC at 760°C
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Texture of Electrodeposited Ni Films
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Ultrasonic Nondestructive Evaluation of the Creep Damaged IN738LC Superalloy
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Mechanical Property of Single Phase Co-Ni-Cr-Mo Based Superalloy Produced by Cold Working and Recrystallization Heat Treatment
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Critical Strain for the Initiation of Dynamic Recrystallization in a Ni-Fe Base Alloy
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Thermomechanical Behavior of Al-Mg-Si Alloys at the Elevated Temperature
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Effects of Silicon and Chromium on the SCC Properties of Al-Zn-Mg-Cu Cast Alloy
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HomeMaterials Science ForumMaterials Science Forum Vols. 449-452Ultrasonic Nondestructive Evaluation of the Creep...

Ultrasonic Nondestructive Evaluation of the Creep Damaged IN738LC Superalloy

Abstract:

It was attempted to evaluate nondestructively the creep damaged IN738LC Ni based superalloys with different degree of rafting using ultrasonic wave. Microstructural parameters (length and width of γ' precipitates) and ultrasonic attenuation were measured in order to clarify the relationship between them. Both the mean length of γ' precipitates and the ultrasonic attenuation increased with creep time. Ultrasonic attenuation was found to have a linear correlation with the mean length of γ' precipitates. It is suggested that the ultrasonic attenuation can be used as a potential nondestructive parameter for assessing the degree of creep damage of IN738LC superalloy.

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Periodical:

Materials Science Forum (Volumes 449-452)

Pages:

569-572

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.449-452.569

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Online since:

March 2004

Authors:

Jai Won Byeon, J.H. Song, S.I. Kwun

Keywords:

Creep Damage, IN 738LC, Non-Destructive Evaluation (NDE), Rafting, Ultrasonic Attenuation

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