Year: 2024
Type: article
Abstract: The corrosion behavior of austempered ductile iron (ADI) in molten aluminum (Al) is investigated in the present study. The results indicate that ADI demonstrates a superior corrosion resistance when exposed to molten Al for an extended period. The intermetallic compounds (IMCs) layer is primarily composed of Fe2Al5 and FeAl3. The thickness of intermetallic layer decreases from 49 to 30 μm with the increase of corrosion time, in which the thickness of Fe2Al5 decreases, while that of FeAl3 remains relatively unchanged. This outcome is primarily attributed to the formation of fine graphite nodules resulting from the decomposition of ausferrite. Additionally, the formation of Fe–Al–Si compound at the interface of IMC and ADI impedes the diffusion of Al atoms into ductile iron.
Source: steel research international
Authors: Qi Zheng, Yuzhou Du, Wei Li, Rui Zhou, Bailing Jiang
Institution: Xi'an University of Technology
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
Award: G130089007
OpenAlex ID: W4405337170