Standard Corrosion tests

[aeonblue]

Hi, I believe I may have developed a coating that can inhibit some forms of corrosion. The problem is that I have little knowledge of any straight-forward tests for 316L, titanium, NiTi, etc..

The only thing i have been trying is high pH, high-ionic strength salt solutions which don't work very well on stable metals. Thanks for your help.

 

[Goahead]

You may wish to consider the classical test per

ASTM B 117
STANDARD PRACTICE FOR OPERATING SALT SPRAY (FOG) APPARATUS

http://www.welding-advisers.com/

 

[RustBucket]

Some basic corrosion acceleration methods are cycling in and out of salt water (usually 5% salt), cycling high (95%) and low (20%) humidity, and cycling temperature.

 

[EdStainless]

If you are talking about stainless and Ni alloys then salt spray is worthless. These alloys will corrode by localized pitting or crevice attack. You will need a high Cl, low pH solution to create this situation. The most common is ASTM G48. You can adjust the temperature to change the severity of the test. There is also a lot of published data available.
One caution is that the test does not reproduce well.
If you want a real good test you will need to learn about electrochemical testing.

= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.

http://www.trent-tube.com/contact/Tech_Assist.cfm