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<p>This study presents a systematic investigation of PVD-coated AISI 410 martensitic stainless steel for enhanced marine application performance. Through DC magnetron sputtering deposition of TiCN, TiSiN, and TiSiCN coatings, comprehensive evaluation revealed TiSiCN superior multifunctional characteristics. Microhardness testing demonstrated a progressive increase from TiCN (1685 HV) to TiSiN (1843HV) and TiSiCN (2126HV), representing a 26% and 15% enhancement respectively. Tribological assessment under dry sliding conditions showed TiSiCN specific wear rate of 2.94 × 10<sup>− 6</sup> mm<sup>3</sup>/N·m, reflecting a 39% reduction compared to TiCN (4.82 × 10<sup>− 6</sup> mm<sup>3</sup>/N·m) and 19% improvement over TiSiN (3.71 × 10<sup>− 6</sup>mm<sup>3</sup>/N·m), while maintaining a reduced coefficient of friction of 0.39. Electrochemical characterization in 3.5wt% NaCl solution confirmed TiSiCN’s exceptional corrosion protection, exhibiting optimized parameters including corrosion potential (− 486&#xa0;mV), corrosion current density (2.84 μA/cm<sup>2</sup>), and polarization resistance (4.76&#xa0;kΩ·cm<sup>2</sup>)—all superior to TiCN (− 614&#xa0;mV, 6.28 μA/cm<sup>2</sup>, 2.13&#xa0;kΩ·cm<sup>2</sup>) and TiSiN (− 543&#xa0;mV, 4.17μA/cm<sup>2</sup>, 3.02&#xa0;kΩ·cm<sup>2</sup>). The enhanced performance is attributed to microstructural refinement through silicon and carbon co-doping, forming a dense TiCN-Si<sub>3</sub>N<sub>4</sub> nanocomposite architecture that simultaneously resists mechanical degradation and chloride penetration. These findings establish TiSiCN coating as the optimal surface engineering solution for marine components operating in demanding tribo-corrosive environments, particularly suited for shaft systems, valve assemblies, and pump housing applications.</p>

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Comprehensive Study on Synergistic Wear–Corrosion Performance of Ti-Based PVD Coatings on AISI 410 Stainless Steel in Marine Environments

  • 期刊论文

  • 发表日期：

    2025年12月12日

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  • Vijayasarathi Prabakaran,
  • M. Mohanakrishnan,
  • M. Karthikeyan,
  • K. Aswin Shingaravel

摘要

This study presents a systematic investigation of PVD-coated AISI 410 martensitic stainless steel for enhanced marine application performance. Through DC magnetron sputtering deposition of TiCN, TiSiN, and TiSiCN coatings, comprehensive evaluation revealed TiSiCN superior multifunctional characteristics. Microhardness testing demonstrated a progressive increase from TiCN (1685 HV) to TiSiN (1843HV) and TiSiCN (2126HV), representing a 26% and 15% enhancement respectively. Tribological assessment under dry sliding conditions showed TiSiCN specific wear rate of 2.94 × 10− 6 mm3/N·m, reflecting a 39% reduction compared to TiCN (4.82 × 10− 6 mm3/N·m) and 19% improvement over TiSiN (3.71 × 10− 6mm3/N·m), while maintaining a reduced coefficient of friction of 0.39. Electrochemical characterization in 3.5wt% NaCl solution confirmed TiSiCN’s exceptional corrosion protection, exhibiting optimized parameters including corrosion potential (− 486 mV), corrosion current density (2.84 μA/cm2), and polarization resistance (4.76 kΩ·cm2)—all superior to TiCN (− 614 mV, 6.28 μA/cm2, 2.13 kΩ·cm2) and TiSiN (− 543 mV, 4.17μA/cm2, 3.02 kΩ·cm2). The enhanced performance is attributed to microstructural refinement through silicon and carbon co-doping, forming a dense TiCN-Si3N4 nanocomposite architecture that simultaneously resists mechanical degradation and chloride penetration. These findings establish TiSiCN coating as the optimal surface engineering solution for marine components operating in demanding tribo-corrosive environments, particularly suited for shaft systems, valve assemblies, and pump housing applications.