In this paper, the effect of hydrogen on the interfacial reaction between Ti-6Al-4V (Ti64) alloy and graphite casting mold was studied by argon and hydrogen plasma arc melting. The experimental results showed that the thickness and the hardness of the interfacial reaction layer decreased with increasing hydrogen partial pressure. The interaction of activated H atoms in the titanium alloy melt and carbon on the interface, [C] + 4[H] = CH₄, could be taking place.

中文翻译：

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氢对Ti-6Al-4V合金熔体与石墨模具界面反应的影响

本文通过氩气和氢等离子体电弧熔化研究了氢对Ti-6Al-4V（Ti64）合金与石墨铸模界面反应的影响。实验结果表明，界面反应层的厚度和硬度随着氢分压的增加而减小。钛合金熔体中活化的H原子与界面上的碳[C] + 4 [H] = CH ₄可能发生相互作用。