Effect of carbon addition on hydrogen permeation in an Fe3Al-based intermetallic alloy
作者： N. Parvathavarthini , U. Prakash , R.K. Dayal
DOI: 10.1016/S0966-9795(01)00140-6
关键词: Metallurgy 、 Hydrogen 、 Intermetallic 、 Materials science 、 Permeability (electromagnetism) 、 Permeation 、 Carbide 、 Chemical engineering 、 Electrochemistry 、 Solubility 、 Alloy
摘要: Abstract Hydrogen permeation was studied in Fe–16 wt.% Al and Al–1 C alloys using electrochemical permeation. Addition of 1 carbon to resulted a significant precipitation perovskite Fe 3 AlC 0.5 carbide phase the Al-based matrix. It also led decrease hydrogen permeability diffusivity by factor 2. However, solubility (trapment) did not change on addition. The addition may explain improved machinability containing carbon.
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