Abstract
CrAlN coatings and CrAlON coatings with varying oxygen content were prepared on the surface of TC4 using multi-arc ion plating. Oxygen introduction resulted in the formation of a (CrAl)(ON) solid solution, leading to finer coating grains and enhanced corrosion resistance. Following a 240-hour immersion in an alternating hydrostatic pressure (AHP) environment, the coatings retained strong adhesion to the substrate. Moreover, they displayed varied improvements in surface hardness and corrosion resistance. The CrAlN coating's improved performance is due to the formation of a surface passivation film, while the high‑oxygen CrAlON coating's enhancement is primarily attributed to filling surface defects with corrosion products under static water pressure.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
