Enhancement of corrosion resistance of Fe–Cr–Mo alloy to molten Al by thermal oxidation in air

Combat molten aluminum corrosion of AISI H13 steel by low-temperature liquid nitrocarburizing

“…According to the results of P.Tunthawiroon et al [47], on specimens oxidized for shorter duration, Fe 2 O 3 films were formed, which provided less effective corrosion resistance to molten Al than specimens oxidized for longer duration. In other words, the duplex film of Fe 2 O 3 and Fe 3 O 4 phase is more effective in improving corrosion resistance to molten Al than the Fe 2 O 3 film, which is explicitly expressed by smaller X mean and the lower weight loss rates of liquid nitrocarburized 743K 8h specimens than those of the liquid nitrocarburized 723K 8h.…”

Review on corrosion resistance of mild steels in liquid aluminum

“…Lou et al [86] found that the corrosion resistance of H13 increased by 3 times after boronizing treatment, which is attributed to the chemical stability and high density of FeB and Fe2B. With the oxidation treatment, Tunthawiroon et al [87] suggested that the corrosion resistance of FeCrMo alloy to molten aluminum was effectively enhanced because of the dominant coverage of Cr2O3 film formed on the alloy surface.…”

“…In the past few decades, many researchers [5,[12][13][14][15][16] have investigated the corrosion behavior of mild steels in liquid aluminum. Previous studies [17][18][19][20] have shown that the Fe matrix can react with liquid aluminum to form the Fe-Al intermetallic compounds (IMCs).…”

The Influence of A Mo Addition on the Interfacial Morphologies and Corrosion Resistances of Novel Fe-Cr-B Alloys Immersed in Molten Aluminum

“…Thus, frequently changing these components wastes money and time. Therefore, a larger number of works [5,6,7,8] have been conducted to explore new materials with high corrosion resistance to molten aluminum. Meanwhile, the corrosion mechanism of steels in molten aluminum has also been widely studied in recent years [9,10,11].…”

“…Previous studies have proposed methods to increase the corrosion resistance and operating life of cast. There are certain die materials with surface treatment technology, such as surface coating [6,14], surface alloying [7,15], and surface duplex treatments [16,17]. However, surface treatments are restricted to the surface coating uniformity, the thermal expansion properties, and the wettability similarity with substrate materials.…”