journal article·2020-05Open access

Effect of hydrogen on interfacial reaction between Ti-6Al-4V alloy melt and graphite mold

Liang Wang, Hui Yan, JiLiang Teng, XiaoDong Liu, Xuan Wang, YanQing Su, JingJie Guo

Abstract

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.
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Research context

OpenAlex topics: Metal and Thin Film Mechanics · Additive Manufacturing Materials and Processes · Titanium Alloys Microstructure and Properties

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