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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/122712


    Title: Interface analysis and properties of Al–Fe alloy aluminising coating on S50C steel
    Authors: Du, Shao-Wei;Lin, C.B.
    Keywords: Fe–Al intermetallic compound;hot-dip coating;interface reaction;glossiness;wear
    Date: 2022-05-12
    Issue Date: 2022-05-14 12:10:18 (UTC+8)
    Abstract: In this study, S50C steel was hot dipped into molten Al–Fe alloy with different Fe content; when the Fe content exceeded 23 wt.%, the hot-dip coating on S50C steel cannot be achieved due to lack of wetting. Using Vicker’s hardness, vane-on-disc wear, and laser specular reflection tests, the Al–23-wt.% Fe alloy hot-dip coating showed high hardness, wear resistance, and surface glossiness. CLSM, SEM, and EDS were used to observe the interface reaction between S50C steel and the hot-dipped Al–23wt.% Fe alloy after an annealing treatment at 650°C–850°C. Because Fe could not diffuse into the Al–23-wt.% Fe alloy, the Al–23-wt.% Fe alloy had no interfacial reaction layer; only the S50C steel formed the Fe3Al intermetallic compound during the thermal activation reaction (activation energy = 253 kJ mol−1). Further, it was found that annealing temperatures of >850°C prevented the formation of Fe3Al intermetallic compound due to the diffusion of carbon into the cast-welding layer.
    Relation: The International Journal of Surface Engineering and Coatings
    DOI: 10.1080/00202967.2022.2058194
    Appears in Collections:[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Journal Article

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