Standards/procedures for hot corrosion testing

[Feldmann359]

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

 

[metengr]

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=vj...tests are recommended for superalloys&f=false