Accelerations in FCGR due to hydrogen damage
may be inhibited by adding small concentrations of certain gases to hydrogen.
In the case of steel, hydrogen damage
may reveal itself as delayed hydrogen cracking, degradation of mechanical properties, especially ductility, and can change microstructures and create bubbles filled with molecular hydrogen, methane or hydrogen sulfide.
Advanced NDE & Non-Intrusive Inspection Techniques" is said to give a state-of-the-art summary of today's methods including inspecting production welding, corrosion mapping and monitoring, hydrogen damage
and attack, inter granular stress corrosion cracking, in-service inspection of welds, flaw sizing and monitoring, weld root erosion, high temperature inspection and continuous monitoring techniques.
is evident as internal voids and surface bubbles.
Part two then examines modern methods of characterization and analysis of hydrogen damage
and part three focuses on the hydrogen degradation of various alloy classes
On-line monitoring of hydrogen permeation current can provide a causal link between the approximate magnitude of general corrosion, from which the performance of inhibition treatments can be assessed, and an early warning of hydrogen damage
for setting suitable inspection intervals.
Part two investigates modern methods of modelling hydrogen damage
so as to predict material-cracking properties.