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<p>This study aims to systematically investigate how friction stir processing (FSP) parameters—specifically tool geometry, rotational speed, and feed rate—influence the corrosion resistance of WE43/TiC surface composites. A methodical experimental approach was employed wherein WE43 magnesium (Mg) alloy plates were processed with incorporated TiC nanoparticles using various combinations of processing parameters, followed by comprehensive electrochemical testing in 3.5 wt% NaCl solution and detailed microstructural characterization. Results revealed that WE43/TiC surface composites exhibited significantly enhanced corrosion resistance compared to both processed and as-received WE43 substrates. The optimal combination for surface composites was achieved using a square tool at 1700 rev/min rotational speed and 60&#xa0;mm/min feed rate, resulting in a 69.5% improvement in corrosion protection efficiency and the lowest corrosion current density (1.8 × 10<sup>−5</sup> A/cm<sup>2</sup>). For processed WE43 substrates without reinforcement, the best corrosion resistance was observed with a square tool at 800 rev/min and 60&#xa0;mm/min. Microstructural analysis demonstrated that enhanced corrosion resistance was primarily attributed to grain refinement and homogeneous distribution of TiC particles. A clear correlation was established between processing parameters, heat input, resultant microstructure, and corrosion behavior: controlled heat input led to finer grain structure, which subsequently improved corrosion resistance. This research provides critical insights into optimizing FSP parameters for WE43/TiC surface composites, establishing a robust approach for the electrochemical tailoring of Mg-based materials for corrosion-resistant applications. It presents a novel approach to customizing these materials for applications in corrosive environments by leveraging microstructural refinement through FSP. The findings emphasize the importance of carefully selecting process parameters to optimize corrosion resistance in WE43/TiC surface composites and their matrix substrates.</p>

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Influence of friction stir processing parameters on corrosion resistance of WE43/TiC surface composites

  • 期刊论文

  • 发表日期：

    2025年6月6日

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  • Amardeep Singh Kang,
  • Ravinder Pal Singh,
  • Abhinav Kumar,
  • Bhavesh Kanabar,
  • Nagappan Beemkumar,
  • Jajneswar Nanda,
  • Ashwin Jacob,
  • Tushar Aggarwal,
  • Dhouha Choukaier,
  • Ankit Dilipkumar Oza

摘要

This study aims to systematically investigate how friction stir processing (FSP) parameters—specifically tool geometry, rotational speed, and feed rate—influence the corrosion resistance of WE43/TiC surface composites. A methodical experimental approach was employed wherein WE43 magnesium (Mg) alloy plates were processed with incorporated TiC nanoparticles using various combinations of processing parameters, followed by comprehensive electrochemical testing in 3.5 wt% NaCl solution and detailed microstructural characterization. Results revealed that WE43/TiC surface composites exhibited significantly enhanced corrosion resistance compared to both processed and as-received WE43 substrates. The optimal combination for surface composites was achieved using a square tool at 1700 rev/min rotational speed and 60 mm/min feed rate, resulting in a 69.5% improvement in corrosion protection efficiency and the lowest corrosion current density (1.8 × 10−5 A/cm2). For processed WE43 substrates without reinforcement, the best corrosion resistance was observed with a square tool at 800 rev/min and 60 mm/min. Microstructural analysis demonstrated that enhanced corrosion resistance was primarily attributed to grain refinement and homogeneous distribution of TiC particles. A clear correlation was established between processing parameters, heat input, resultant microstructure, and corrosion behavior: controlled heat input led to finer grain structure, which subsequently improved corrosion resistance. This research provides critical insights into optimizing FSP parameters for WE43/TiC surface composites, establishing a robust approach for the electrochemical tailoring of Mg-based materials for corrosion-resistant applications. It presents a novel approach to customizing these materials for applications in corrosive environments by leveraging microstructural refinement through FSP. The findings emphasize the importance of carefully selecting process parameters to optimize corrosion resistance in WE43/TiC surface composites and their matrix substrates.