Evaluates the use of non-destructive surface testing (micro indentation, micro-machining, in situ chemistry, and replicate microscopy analysis) as a means to perform pipe material confirmation.
This study was undertaken to determine whether it is feasible to substitute spectrographic analysis for wet analysis in performing check chemical analyses of pipe steels. The use of spectrographic techniques for check analyses has been proposed to…
The Charpy test':' provides a quick, inexpensive, and well-established measure of the fracture resistance of steels. There exists a mass of data on the relations between Charpy energy and metallurgical variables, but it is scattered. Furthermore, a…
This report describes a new approach using existing non-destructive examination (NDE) techniques to determine pipe properties when existing data and information are absent or incomplete. The research work developed a neural network-based tool making…
Evaluates the material properties of low-carbon bainitic-steel pipe with microalloying of titanium and boron in high manganese steel. The ductile-brittle transition temperature was determined as well as a full-scale burst test.
Evaluates the material properties of low-carbon bainitic-steel pipe with microalloying of titanium and boron in high manganese steel. Strain aging and stepwise hydrogen-induced cracking were also evaluated.
Tests are being conducted to examine and identify the cause and effect of pressure reversal that sometimes occur during hydrostatic pressure testing of pipelines. The concern being that hydrostatic testing may in some instances reduce rather than…
The pipeline systems which have been laid down for decades such as those installed in the early 1900s are still in use, however, a reliable database reporting the mechanical properties, and information about manufacturing and installation is often…
This report presents the work carried out towards the development, laboratory testing, field testing, and commercialization of a hardness tester module for the live, in-line non-destructive quantification of material properties (toughness and…
Charpy V-notch impact tests of longitudinally welded line-pipe steels representative of the steel being used by the gas line-pipe industry. The tests were made on the steel of welded pipe specimens from 198 heats of steel submitted by six pipe…