压力硬化钢铝硅涂层中的氢扩散

Metallurgical and Materials Transactions A Pub Date : 2024-09-10 DOI:10.1007/s11661-024-07574-7

Dae Geon Lee, Ji Hoon Kim, Yeonseung Jung, Dong-Woo Suh

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摘要

我们研究了经过压力硬化模拟的铝硅涂层中的氢扩散行为。结果表明，微观结构的演变，特别是金属间化合物的类型，对氢吸收有显著影响。研究发现，与 Al5Fe2 相比，涂层中形成的 AlFe 具有更低的氢扩散率，这有利于抑制氢在涂层中的渗透。

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Hydrogen Diffusion in Al–Si-Coating Layer of Press-Hardening Steel

We examined the hydrogen diffusion behavior in the Al–Si-coating layer which underwent the press-hardening simulation. The microstructure evolution, in particular, the type of intermetallic compounds, was revealed to have a remarkable influence on the hydrogen absorption. It was found that the formation of AlFe in the coating layer was advantageous regarding to the suppression of hydrogen penetration across the coating layer, which was originating from the lower hydrogen diffusivity compared to the Al₅Fe₂.

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Metallurgical and Materials Transactions A

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