DETERMINATION OF DIFFUSIBLE HYDROGEN CONTENT IN THE DEPOSITED METAL OF RUTILE ELECTRODES BY THE GLYCERIN METHOD

Abstract

The presence of diffusible hydrogen in welded joints is one of the causes of formation the welding imperfections. Improvement of weldability can be achieved by reducing the hydrogen amount in welded joints. This requires, among others, the finding of sources of hydrogen. For high hydrogen processes the commonly used method of determining the diffusible hydrogen amount is the glycerin method. This paper concerns issues related to the test procedure and the possibility to control the diffusible hydrogen amount in deposited metal.