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Standards/procedures for hot corrosion testing

Standards/procedures for hot corrosion testing

Standards/procedures for hot corrosion testing

(OP)
I am planning a comparative testing campaign of various Ni/Co/Fe superalloys designated to be uses in a combustion chamber (wall temperatures 1500°F, gases: H2O vapour, CO, NOx, CO2, NHx, H2).

The combustion chamber has a service life of approx 100h.

I have at the moment approx. 20 different alloys which I think are better than the current one.

So I am looking for a proper way to do the corrosion testing. Does anybody know a good method or standard for this case?

Is it necessary to make the corrosion test as long as the service life or are there methods to accelerate it?


I only want to know if one of my 20 new materials are better than the current one, I do not need exact corrosion rate data for the full service life.

Best regards
Feldmann

RE: Standards/procedures for hot corrosion testing

Feldmann359;
Get yourself a copy and read it. This covers all of the necessary tests and damage - hot corrosion and wet immersion;

http://books.google.com/books?id=vjCJ5pI1QpkC&pg=PA8&lpg=PA8&dq=what+type+of+corrosion+tests+are+recommended+for+superalloys&source=bl&ots=LHfZCdk2_7&sig=WdXyuqM1mr8-xG5zb3sEO4y5k5A&hl=en&sa=X&ei=wznRT4j2MarY2QX1rYWXDw&ved=0CI8BEOgBMAA#v=onepage&q=what%20type%20of%20corrosion%20tests%20are%20recommended%20for%20superalloys&f=false

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