Crystallographic Texture as a Factor Enabling Ductile Fracture Arrest in High Strength Pipeline Steel

Abstract:

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Low ductile crack arrestability in a full-scale burst test of 1420 mm-diameter X80 steel line pipes was accompanied by a high intensity of fracture surface separation. The texture of the steel plates was studied using different techniques in order to evaluate the influence of {001} planes oriented parallel to the rolling plane on the separation intensity during fracture. Though no clear correlation between the content of {001} planes parallel to the rolling plane and intensity of separation was found, the local distribution of the {001}<110> texture component among the microstructure components was different in different steels providing long areas suitable for cleavage fracture parallel to the rolling plane in steel with low arrestability.

Info:

Periodical:

Materials Science Forum (Volumes 702-703)

Edited by:

Asim Tewari, Satyam Suwas, Dinesh Srivastava, Indradev Samajdar and Arunansu Haldar

Pages:

770-773

DOI:

10.4028/www.scientific.net/MSF.702-703.770

Citation:

I. Pyshmintsev et al., "Crystallographic Texture as a Factor Enabling Ductile Fracture Arrest in High Strength Pipeline Steel", Materials Science Forum, Vols. 702-703, pp. 770-773, 2012

Online since:

December 2011

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Price:

$35.00

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