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Technical issues regarding hydrogen storage leakage are (i) the small size of the H molecule which causes it to diffuse through relatively open structured materials such as composites, and (ii) the phenomenon of Hydrogen Embrittlement (HE) which seriously reduces the strength of metals in extended contact with hydrogen.
Failure analysis, corrosion testing, cleanliness testing, XRD testing, hydrogen embrittlement and routine metallurgical evaluations are some of the lab's key offerings.
In the end, the committee investigating the failed rods determined that hydrogen embrittlement was the culprit.
A new computer model developed at McGill University has for the first time enabled accurate predictions about hydrogen embrittlement thresholds in steel.
As steel with bainitic microstructure (hardness 48 HRC) is already sensitive to hydrogen embrittlement from Ni-Cr plating , the bending tests of the tongues were performed to evaluate the brittleness.
Gaseous hydrogen embrittlement of materials in energy technologies; v.
Though the hydrogen evolution at the implant surface may further complicate the situation by pressure under the prosthesis and hydrogen embrittlement of the implant surface.
However, hydrogen embrittlement should follow Sievert's law and will be influenced by the concentration of atomic hydrogen absorbed in the metal.