Interfacial morphologies and corrosion behaviours of novel Fe-Cr-B alloys immersed in molten aluminium

Ling, Zicheng; Chen, Weiping; Yang, Xin; Li, Bing; Lu, Tiwen

doi:10.1088/2053-1591/aafeb1

Cited by 13 publications

(7 citation statements)

References 29 publications

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“…The schematic diagram of the corrosion test device could be found in the study by Ling et al, [6] which is mainly composed of an electric furnace with a clay crucible that is used to melt aluminum ingots. In the sample preparation stage, cubic samples were ground by different grades of grinding papers (from 180 to 1500 mesh) to achieve a good surface finish.…”

Section: Corrosion Testsmentioning

confidence: 99%

“…[5] In our previous work, we investigated the corrosion behavior of Fe-Cr-B alloys with 13-17 wt% Cr content in molten aluminum. [6] Compared with the widely used H13 hot-work die steel, the studied Fe-Cr-B alloys have shown much less volume loss after experiencing corrosion by molten aluminum, arising from the outstanding stability of M 2 B borides. The stable M 2 B borides could protect the Fe matrix, and therefore the further corrosion caused by molten aluminum could be significantly impeded.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion behavior of novel Fe–Cr–B alloys containing high Cr content in molten aluminum

Yang

Chen

et al. 2022

Materials & Corrosion

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Materials applied in the aluminum processing industry commonly suffer harsh corrosion on account of the high aggressivity of molten aluminum. Fe–Cr–B alloys have shown outstanding corrosion resistance to molten aluminum due to the presence of Cr‐rich borides displaying high stability. Accordingly, three Fe–Cr–B alloys with high Cr contents (20.6, 28.7, and 36.6 wt%) were fabricated in this study. As the Cr content increased from 20.6 to 36.6 wt%, the (Cr,Fe)2B borides ultimately transformed into Cr2B borides. A corrosion test was carried out in molten aluminum at three temperatures (700°C, 750°C, and 800°C) for 4 h and the volume losses of the studied alloys were measured to estimate their corrosion resistance. The Fe–Cr–B alloy with 28.73 wt% Cr exhibited the finest corrosion resistance among the three studied Fe–Cr–B alloys on account of enhancing the corrosion resistance of the Fe matrix by solution mechanism as well as maintaining the generation of periodical layered structures in its corrosion interface. In addition, as the test temperature expanded, the volume loss of Fe–Cr–B alloys stepped up slowly, whereas that of H13 tended to increase drastically.

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Section: Corrosion Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Corrosion behavior of novel Fe–Cr–B alloys containing high Cr content in molten aluminum

Yang

Chen

et al. 2022

Materials & Corrosion

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“…In this case, it will be interesting to add to the alloy of the Fe-C-Cr-B-Ti alloying system the alloying elements increasing the corrosion resistance and almost insoluble in borides, such as copper. Cu is a wellknown alloying element used to increase the overall corrosion resistance [86][87][88][89][90]. It is known the copper does not form compounds with boron (B) and remains mostly in the matrix [91], dissolving mostly in austenite [78].…”

Section: Introductionmentioning

confidence: 99%

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2022

Metallofiz. Noveishie Tekhnol.

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“…Besides, the intermetallics thickness of duplex stainless steel is comparatively thinner, and the interface is much flatter. Ling et al [ 15 ] proposed that the volume loss of Fe–Cr–B cast steel was 78% lower than that of H13 steel in molten aluminum at 750°C. This is attributed to the fact that the M2B‐type boride phase inhibits the reaction‐diffusion between molten aluminum and matrix.…”

Section: Introductionmentioning

confidence: 99%

Erosion mechanism of austenitic steel and martensitic steel in aluminum alloy melt

Bai

Yang

et al. 2022

Materials & Corrosion

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Due to the washout of aluminum alloy melt, the erosion failure of steel is a complex problem in die casting. To explain the erosion mechanism in flowing aluminum alloy melt, 6Mn14Cr3Mo2Si1V2 steel, and 4Cr5Mo2V steel were stirred at 700°C in ADC12 melt. The erosion characteristics were studied via the scanning electron microscope. At the test time increased from 600 to 1800 s, the weight loss rate of 6Mn14Cr3Mo2Si1V2 steel increased from 5.0% to 14.1%, and the weight loss rate of 4Cr5Mo2V steel increased from 5.4% to 12.8%. If the corrosion time reaches more than 1200 s, 6Mn14Cr3Mo2Si1V2 steel has lower erosion resistance because intergranular corrosion causes the matrix to peel off. Besides, the lump-like Vanadium carbides with a low erosion rate act as obstacles to prevent the invasion of aluminum alloy melt. The reaction product of steel and aluminum alloy melt is identified as

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Interfacial morphologies and corrosion behaviours of novel Fe-Cr-B alloys immersed in molten aluminium

Cited by 13 publications

References 29 publications

Corrosion behavior of novel Fe–Cr–B alloys containing high Cr content in molten aluminum

Corrosion behavior of novel Fe–Cr–B alloys containing high Cr content in molten aluminum

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Erosion mechanism of austenitic steel and martensitic steel in aluminum alloy melt

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