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Is HTHA a form of corrosion

thread135-418497

Is HTHA a form of corrosion

Is HTHA a form of corrosion

(OP)
Can anyone help me? I need to know if HTHA (High Temperature Hydrogen Attack) is a form of corrosion or not?
I look forward to any replies that could determine this. Thanks in advance, Chris

RE: Is HTHA a form of corrosion

Since "corrosion" and "high temperature hydrogen attack" are both defined in ASTM G193, and the results of the latter meet the definition of the former, the answer would have to be in the affirmative.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/pub/8/83b/b04

All answers are personal opinions only and are in no way connected with any employer.

RE: Is HTHA a form of corrosion

Since it is a material degradation mechanism it is considered a form of high temperature corrosion.
Even though strictly speaking many high temperature attack mechanisms are not truly 'corrosion' in the sense that no external chemical reactions with the effected alloy are taking place.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Is HTHA a form of corrosion

(OP)
Many thanks indeed for your replies. Your time is very much appreciated

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