No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

Corrosion resistance of TiN

How corrosion resistant is titanium nitride? Would a thicker TiN film provide better chemical protection, if so, what's the minimum thickness?

WY Wong
- HK

My information is that TiN coatings are too porous to function for corrosion resistance, so if the substrate is not corrosion resistant it must be plated with a corrosion resistant material before the TiN.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

TiN has a columnar structure on the substrate. Typical coating thickness is 2-3 microns. Corrosive attacks are usually generated by gassing that would attack the substrate through angstrom level porosity in the coating. The corrosion occurs from the substrate out through the coating. A chrome based PVD coating such as Chrome Carbide or Chrome Nitride would dramatically improve the situation.

Blair Woodring
- East Petersburg, Pennsylvania, USA

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: