Hydrogen charging

[Stack111]

I would appreciate some input from the corrosion engineers here. If i have hydrogen gas flowing into a vessel, can it dissociate into atomic hydrogen and lead to hydrogen embrittlement, or does the hydrogen already have to be in atomic form (i.e. be the result of a corrosion reaction)? All input is welcome!

 

[CoryPad]

Metals, such as iron, can absorb gaseous hydrogen through chemisorption.

 

[cloa]

http://www.slideshare.net/sidheshwar1988mm24/hydrogen-embrittlement-causes-effects-prevention

http://www.eng-tips.com/threadminder.cfm?pid=1529

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[TVP]

Here are some other good links:


Hydrogen Embrittlement

http://www.uni-saarland.de/fak8/wwm/research/phd_barnoush/hydrogen.pdf

Hydrogen Embrittlement of Structural Steels

http://www.hydrogen.energy.gov/pdfs/progress12/iii_1_dedrick_2012.pdf

Effects of purity and pressure on the hydrogen embrittlement of steels and other metallic materials

http://conference.ing.unipi.it/ichs/images/stories/papers/149.pdf

 

[Stack111]

Thank you for the links and suggestions, they have been very helpful.

 

[cloa]

By the look of that carbon steel is ill-characterised (not really known) for hydrogen damage by hydrogen gas(that's embrittlement plus blistering). Is any metal for typical applications?

http://www.eng-tips.com/threadminder.cfm?pid=1529

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