A. Lasseigne, D. McColskey, National Institute of Standards and Technology, Boulder, CO; K. Koenig, J. Jackson, D. Olson, B. Mishra, Colorado School of Mines, Golden, CO
Historically hydrogen has been a problem during and after welding processes. Techniques have been employed to reduce hydrogen contents after welding, however it is not always possible to eliminate all of the hydrogen especially when many weldments are situated in hydrogen containing environments. Advanced non-destructive sensors have been developed for detection of hydrogen content in steel weldments. The use and measurement scheme to measure hydrogen in steel weldments will be described.
Summary: With increasing demand for higher strength steel pipelines, the tolerance for hydrogen in the steel decreases. It is essential to monitor the hydrogen in these higher strengths steels before significant degredation or cracking occurs. Advanced non-destructive hydrogen sensors have been developed for hydrogen content detection in steel weldments through the pipeline coating.
