Evaluation of Tribological and Corrosion Behavior of TiSiCN and TiCN Coated AISI 410 Stainless Steel Under the Influence of Heat Treatment
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This study evaluates the corrosion resistance, tribological behavior, and mechanical properties of TiSiCN and TiCN coatings deposited via PVD on untreated and heat-treated AISI 410 stainless steel for seawater applications. Heat treatment improved substrate hardness and wear resistance. Electrochemical analysis showed that TiSiCN coatings provided superior corrosion protection, with the hardened sample exhibiting an Ecorr of − 710 mV, an icorr of 1.2 µA/cm², and a protection efficiency of 76.47%, compared to 64.71% for TiCN. Although heat-treated uncoated samples showed slight improvement over untreated ones, coating significantly enhanced corrosion resistance. Tribological testing revealed lower coefficients of friction for TiSiCN coatings (0.32 hardened, 0.37 unhardened) compared to TiCN (0.36 and 0.41), along with higher microhardness (2500 HV vs. 2200 HV). SEM analysis confirmed narrower, smoother wear tracks and minimal delamination on TiSiCN-coated surfaces. Overall, TiSiCN coatings offer excellent corrosion resistance, superior wear performance, and enhanced mechanical durability for marine and high-performance applications.
