Hydrogen damage of a welded API 5L X52 steel

Réquiz, Roberto; Camero, Sonia; Aristizabal, V.; Rivas, Ana

doi:10.1080/09507110902843420

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…3. Requiz et al 1) have investigated the susceptibility to hydrogen damage on API 5L X52 steel, which is a close analogue of the steel used in the present work. The blistering observed in 1) was associated with the presence of inclusions.…”

Section: Resultsmentioning

confidence: 99%

“…Hence, they could fail prematurely causing severe ecological catastrophes. The failure occurs in a localized manner in a form of blistering and cracking 1) and is referred to as hydrogen induced damage. Several standard procedures have been proposed and put into practice in the last years to assess the materials susceptibility to hydrogen attack.…”

Section: Introductionmentioning

confidence: 99%

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Acoustic Emission during Hydrogen Charging of a Pipeline Steel

Мерсон

Dement'ev

Ioffe³

et al. 2011

ISIJ Int.

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Acoustic emission (AE) during hydrogen-induced cracking (HIC) of low-carbon pipeline steel immersed into H2S containing media was investigated aiming at discriminating between damage mechanisms and getting a better insight on the kinetics of damage. Two kinds of steel samples -sensitive and resistant to hydrogen induced cracking -were tested. Three different kinds of acoustic emission signals were discriminated by a cluster analysis involving either spectral shape recognition or parametric c-means classifier. It is demonstrated that AE is associated with three primary mechanisms involving hydrogen bubbles evolution, sulfide film formation and fracture due to HIC. Hence, AE is shown to be very efficient for quantitative description of hydrogen induced damage accumulation in steels.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%