Assessment of Tensile and Fatigue Damage in 316L Stainless Steel by Acoustic Emission Technique

Abstract:

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Acoustic emission (AE) technique was applied to evaluate both tensile deformation of 316L stainless steel and bending-fatigue damage of socket-welded pipe. AE activity was monitored during tensile deformation of plate-type specimens subjected to various heat treatments. Variation in RMS voltage of AE signal was correlated with the amount of strain-induced martensite phase. Secondly, actual size of socket-welded pipe specimen was bending-fatigued under various stresses. Crack initiation was determined by observing an abrupt increase in AE count, and confirmed by radiographic examination before and after the crack initiation cycle. Potentials of AE technique for monitoring fatigue crack initiation were discussed.

Info:

Periodical:

Solid State Phenomena (Volumes 124-126)

Edited by:

Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park

Pages:

1381-1384

DOI:

10.4028/www.scientific.net/SSP.124-126.1381

Citation:

J. W. Byeon et al., "Assessment of Tensile and Fatigue Damage in 316L Stainless Steel by Acoustic Emission Technique", Solid State Phenomena, Vols. 124-126, pp. 1381-1384, 2007

Online since:

June 2007

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Price:

$35.00

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