Untersuchung der Dynamik der Rissbildung in rostfreiem Stahl und Titan nach Wasserstoffsättigung

The surface condition of titanium and stainless steel during electrolytical charge in LiOH+H2O solution were studied by optical and scanning electron microscopy. It is shown that hydrogen charge process is accompanied by formation of damaged structure including cracks on the surface and in the body of the material. Damages formation initiate an intense acoustic emission (AE) occuring, yield rate of which increases nonlinearly with current density increase. AE occuring mechanisms during electrolysis are considered.