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<p>Magnesium alloys (e.g. AZ61), are becoming increasingly used in aerospace, automotive, and electronic applications because to its low density, high strength-to-weight ratio, and machinability. But their widespread use is limited by relatively low hardness, inadequate durability for wear, and suboptimal corrosion performance. This study employs two advanced surface modification techniques, namely, laser cladding (LC) and friction stir processing (FSP), to assess impact of nano-sized titanium carbide (TiC) reinforcement on the morphological, micro hardness, and corrosion properties of AZ61 Mg-alloy, while also comparing the efficacy of each technique.Ball milling adsorption was used to produce TiC-reinforced particles, which were subsequently incorporated into an alloy’s surface via LC and FSP methods. The micro structural analysis confirmed significant grain refinement, uniform TiC dispersion, and lack of casting-related defects. Micro hardness testing showed up to a 3.5-fold improvement over the basic alloy, while morphological evaluation demonstrated improved surface integrity. A significant decrease in corrosion current density was seen in electrochemical studies, suggesting improved corrosion resistance under challenging circumstances. Wear resistance was enhanced by the combination of strong ceramic reinforcing and refined grains. Collectively, the processing technique shows significant improvements to the structural integrity and surface performance of the AZ61 alloy making it applicable for advanced engineering applications.</p>

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Impact of laser cladding and friction stirred processing of nano titanium carbide particles reinforced AZ61 Mg alloys on morphological, mechanical and corrosion characteristics

  • 期刊论文

  • 发表日期：

    2026年7月16日

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  • Bader Alqahtani,
  • Mohammed Yunus

摘要

Magnesium alloys (e.g. AZ61), are becoming increasingly used in aerospace, automotive, and electronic applications because to its low density, high strength-to-weight ratio, and machinability. But their widespread use is limited by relatively low hardness, inadequate durability for wear, and suboptimal corrosion performance. This study employs two advanced surface modification techniques, namely, laser cladding (LC) and friction stir processing (FSP), to assess impact of nano-sized titanium carbide (TiC) reinforcement on the morphological, micro hardness, and corrosion properties of AZ61 Mg-alloy, while also comparing the efficacy of each technique.Ball milling adsorption was used to produce TiC-reinforced particles, which were subsequently incorporated into an alloy’s surface via LC and FSP methods. The micro structural analysis confirmed significant grain refinement, uniform TiC dispersion, and lack of casting-related defects. Micro hardness testing showed up to a 3.5-fold improvement over the basic alloy, while morphological evaluation demonstrated improved surface integrity. A significant decrease in corrosion current density was seen in electrochemical studies, suggesting improved corrosion resistance under challenging circumstances. Wear resistance was enhanced by the combination of strong ceramic reinforcing and refined grains. Collectively, the processing technique shows significant improvements to the structural integrity and surface performance of the AZ61 alloy making it applicable for advanced engineering applications.