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<p>This study investigates the use of titanium hydride powder as a versatile foaming agent with industrial applications, focusing on its thermal decomposition process. The novelty of the work lies in optimizing titanium hydride’s performance by varying heat treatment conditions to achieve consistent foam structures with desirable porosity. Results show that heat treatment duration significantly affects aluminum nanocomposite foam porosity. Samples without heat treatment display increased porosity due to extended hydrogen gas release. In contrast, heat-treated samples exhibit reduced porosity as titanium hydride decomposes and forms an oxide layer. An extended heat treatment of three hours at 700&#xa0;°C enhances porosity and pore morphology. The study emphasizes the importance of precise adjustments in both frictional stirring and heat treatment, as pore morphology, distribution, and size directly influence the mechanical properties of aluminum foam. This research provides new insights into optimizing parameters to improve material quality for various applications.</p>

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Influence of Titanium Hydride Heat Treatment Time on Pore Morphology of Friction Stir Welded Aluminum Nanocomposite Foams

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • Ehsan Alizadeh,
  • Amir Reza Mashtizadeh,
  • Mahdi Azizieh

摘要

This study investigates the use of titanium hydride powder as a versatile foaming agent with industrial applications, focusing on its thermal decomposition process. The novelty of the work lies in optimizing titanium hydride’s performance by varying heat treatment conditions to achieve consistent foam structures with desirable porosity. Results show that heat treatment duration significantly affects aluminum nanocomposite foam porosity. Samples without heat treatment display increased porosity due to extended hydrogen gas release. In contrast, heat-treated samples exhibit reduced porosity as titanium hydride decomposes and forms an oxide layer. An extended heat treatment of three hours at 700 °C enhances porosity and pore morphology. The study emphasizes the importance of precise adjustments in both frictional stirring and heat treatment, as pore morphology, distribution, and size directly influence the mechanical properties of aluminum foam. This research provides new insights into optimizing parameters to improve material quality for various applications.