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Effects of Temperature and Crack Tip Constraint on Cleavage Fracture Toughness in the Weld Thermal Simulated X80 Pipeline Steels

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Abstract:

This paper studies the effects of temperature and crack tip constraint on cleavage fracture toughness of the weld thermal simulated X80 pipeline steels. A large number of fracture toughness (as denoted by CTOD) tests together with 3D finite element analysis are performed using single edge notched bending (SENB) and tension (SENT) specimens at different temperatures. Coarse-grained heat-affected zone (CGHAZ) is considered as the material microstructure in preparation of the weld thermal simulated fracture mechanics specimens.

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Periodical:

Advanced Materials Research (Volumes 197-198)

Pages:

1595-1598

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.197-198.1595

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Online since:

February 2011

Authors:

Jie Xu, Yu Fan

Keywords:

Coarse-Grained Heat Affected Zone (CGHAZ), Finite Element Analysis (FEA), Fracture Toughness, Weld Thermal Simulation, X80 Pipeline Steel

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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