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<p>In aero-engine containment tests, titanium alloy blades exploding and flying off generate a large amount of titanium fire, affecting the capture and recording of the blade flyoff process. To solve the problem of titanium fire interference caused by the shaped charge cutting process, this study innovatively proposed a barrier layer protection technique based on the analysis of the titanium fire mechanism of explosive flyoff, and prepared and used aluminosilicate materials as barrier layers for experiments. The results show that the use of aluminosilicate materials as a barrier layer can significantly reduce the generation of titanium fire, with a suppression effect of 75%. The study confirmed that the barrier layer technique can effectively inhibit the generation of titanium fire by precisely utilizing the speed difference between the metal jet and the detonation products to isolate the titanium alloy from direct contact with the detonation products in a short period of time, thereby providing an effective protection solution for observation systems in aero-engine containment tests.</p>

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Study on titanium fire suppression technology for aero-engine uncontained failures

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月12日

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  • Tianxi Wang,
  • Meng Wang,
  • Zhong Wei,
  • Qiang Xie,
  • Yixuan Wang,
  • Haijun Xuan,
  • Zekan He,
  • Yi Zhou

摘要

In aero-engine containment tests, titanium alloy blades exploding and flying off generate a large amount of titanium fire, affecting the capture and recording of the blade flyoff process. To solve the problem of titanium fire interference caused by the shaped charge cutting process, this study innovatively proposed a barrier layer protection technique based on the analysis of the titanium fire mechanism of explosive flyoff, and prepared and used aluminosilicate materials as barrier layers for experiments. The results show that the use of aluminosilicate materials as a barrier layer can significantly reduce the generation of titanium fire, with a suppression effect of 75%. The study confirmed that the barrier layer technique can effectively inhibit the generation of titanium fire by precisely utilizing the speed difference between the metal jet and the detonation products to isolate the titanium alloy from direct contact with the detonation products in a short period of time, thereby providing an effective protection solution for observation systems in aero-engine containment tests.