Comparison of the corrosion resistance of TiN and (Ti,Al)N coatings

Ion nitriding of titanium aluminides with 25–53 at.% Al II: Corrosion properties

“…In industrial applications, titanium and its alloys are used as corrosion-resistant materials in acid environments. Several investigations on corrosion resistance have been done on nitrided pure titanium and nitrided titanium alloys [3][4][5][6][7]. However, to our knowledge, there are few data on the corrosion characteristics of titanium aluminides [8].…”

Properties of Surface Layers Produced from a Metalorganic Titanium Compound Under Glow Discharge Conditions

“…4). It is known that the corrosion resistance of surface TiN layers depends on their porosity and structural defects [8,9], and that the nitriding of the stainless steel lowers markedly its corrosion resistance. The increased corrosion resistance of the composite layers can be explained by the fact that factors such as the temperature and chemical composition of the gaseous atmosphere, the electrical activation of the gaseous medium, the highly developed surface zone of the nitrided layer and the structural deffects produced in it by cathode sputtering, and also the possibility of producing a nitrided layer without a compounds zone, permit us to control the microstructure and chemical composition and thereby the corrossion properties of the TiN or Ti(0CN) layers produced.…”

Influence of Growth Defects on the Corrosion Resistance of Sputter-Deposited TiAlN Hard Coatings

“…Although the PVD hard coatings have a very good corrosion resistance, they do not provide good corrosion protection of the less noble substrate materials [4,5]. The corrosive attack of coated components is caused by imperfections within the coating [3,4,[6][7][8][9][10][11][12][13]. It is well known that due to the line-of-sight transfer of the vapor flux during the sputtering process, many intrinsic defects are generated in the coating [14].…”