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<p>A&#xa0;surface modification technique of titanium with aluminides was experimentally tested. This method involves the explosion welding of a&#xa0;steel-aluminum-titanium composite, followed by pressure treatment to reduce the thickness of the aluminum layer. Subsequent annealing creates a&#xa0;diffusion zone of sufficient thickness at the steel-aluminum interface, enabling the spontaneous separation of the steel layer. A&#xa0;final heat treatment is then applied to induce liquid-phase interaction. The study demonstrates that the aluminide-based coating on the titanium surface forms due to the upward transport of detached TiAl<sub>3</sub> fragments from the reaction zone by circulating melt flows.</p>

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Surface hardening of titanium with aluminides using a combined technology including explosion welding, pressure treatment, and heat treatment

  • 期刊论文

  • 发表日期：

    2025年10月27日

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  • V. G. Shmorgun,
  • V. P. Kulevich,
  • A. I. Bogdanov,
  • R. E. Novikov

摘要

A surface modification technique of titanium with aluminides was experimentally tested. This method involves the explosion welding of a steel-aluminum-titanium composite, followed by pressure treatment to reduce the thickness of the aluminum layer. Subsequent annealing creates a diffusion zone of sufficient thickness at the steel-aluminum interface, enabling the spontaneous separation of the steel layer. A final heat treatment is then applied to induce liquid-phase interaction. The study demonstrates that the aluminide-based coating on the titanium surface forms due to the upward transport of detached TiAl3 fragments from the reaction zone by circulating melt flows.