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<p>This study evaluates the corrosion resistance, tribological behavior, and hardness of TiSiCN and TiCN coatings deposited via PVD on untreated and heat-treated AISI 410 stainless steel for seawater applications. Heat treatment enhanced substrate hardness and wear resistance, providing a stronger foundation for the coatings. Electrochemical analysis revealed that TiSiCN coatings offered 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 substrates showed slight improvement over untreated ones, the application of coatings was the primary factor in enhancing corrosion resistance. Tribological testing demonstrated lower coefficients of friction for TiSiCN coatings (0.32 for hardened, 0.37 for unhardened) relative to TiCN (0.36 and 0.41), along with higher microhardness values (2500 HV vs. 2200 HV). Cross-sectional microscopic analysis measured coating thickness and examined the coating–substrate interface, enabling correlation between microstructure and performance. SEM observations of wear tracks showed narrower, smoother paths with minimal delamination for TiSiCN coatings, confirming superior adhesion and wear resistance. Overall, TiSiCN coatings combine excellent corrosion resistance, enhanced tribological performance, and mechanical durability, making them highly suitable for marine and high-performance applications.</p>

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Study of heat treatment influence on the tribological and corrosion properties of TiSiCN and TiCN coated AISI 410 stainless steel

  • 期刊论文

  • 发表日期：

    2025年11月26日

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  • Vijayasarathi Prabakaran,
  • Mohanakrishnan Murugesan,
  • Karthikeyan Murugan,
  • Aswin Shingaravel Kumaravel,
  • Madhesh Manimaran,
  • Sreeram Murugan Devaki,
  • Arul Selvam Doss

摘要

This study evaluates the corrosion resistance, tribological behavior, and hardness of TiSiCN and TiCN coatings deposited via PVD on untreated and heat-treated AISI 410 stainless steel for seawater applications. Heat treatment enhanced substrate hardness and wear resistance, providing a stronger foundation for the coatings. Electrochemical analysis revealed that TiSiCN coatings offered 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 substrates showed slight improvement over untreated ones, the application of coatings was the primary factor in enhancing corrosion resistance. Tribological testing demonstrated lower coefficients of friction for TiSiCN coatings (0.32 for hardened, 0.37 for unhardened) relative to TiCN (0.36 and 0.41), along with higher microhardness values (2500 HV vs. 2200 HV). Cross-sectional microscopic analysis measured coating thickness and examined the coating–substrate interface, enabling correlation between microstructure and performance. SEM observations of wear tracks showed narrower, smoother paths with minimal delamination for TiSiCN coatings, confirming superior adhesion and wear resistance. Overall, TiSiCN coatings combine excellent corrosion resistance, enhanced tribological performance, and mechanical durability, making them highly suitable for marine and high-performance applications.