...) fracture toughness plastic deformation cracks grain boundary segregation Advances in computer control and rolling capacity led to the development of a new class of high strength low alloy (HSLA) steels, namely TMCP (Thermo-Mechanical Control Process) steels. The main aim of TMCP is to produce...

... study has been conducted on the tensile properties of line pipe steels with prestrain. Concerning the fracture toughness of a deformed pipeline, several experimental results have been reported. Leis et al. ( 3 ) have evaluated the toughness properties of line pipe steels with prestrain. Hagiwara et...

...Andrew Cosham A simple theoretical model for predicting the effect of tensile pre-strain on fracture toughness has been developed using the local approach. The HRR singularity is assumed to describe the stress-strain field around the crack tip. A stress-modified critical strain-controlled model...

... toughness distributions in terms of effective crack lengths that account for the varying stress intensity factor along the crack front. The model is intended to aid in the development of fracture toughness distributions for cracks encountering local brittle zones (LBZ) in the heat-affected zones (HAZ...