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標題: Microstructure and wear properties of multicomponent alloy cladding formed by gas tungsten arc welding (GTAW)
作者: Chen, J.H.
Chen, P.N.
Lin, C.M.
Chang, C.M.
Chang, Y.Y.
Wu, W.
關鍵字: Multicomponent alloy;GTAW cladding;Wear;high-entropy alloys;resistance;hardness;steel;films
Project: Surface & Coatings Technology
期刊/報告no:: Surface & Coatings Technology, Volume 203, Issue 20-21, Page(s) 3231-3234.
A multicomponent alloy (Al0.5-Fe2-CO-Ni-Cr-Mo-Si) cladding was fabricated on a low-carbon steel substrate by the GTAW process using a multicomponent alloy filler. The resulting cladding layer was analyzed by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), X-ray energy-dispersive spectroscopy (EDS), and transmission electron microscopy (TEM). The results showed the presence of an FeMoSi phase and a BCC phase in the dendritic and interdendritic regions, respectively. The wear resistance of the cladding layer was four times that of the substrate. The improvement of wear resistance of the cladding layer could be attributed to the high hardness of the dendritic FeMoSi phase and nanoscale precipitation in the interdendritic region. The covalent-dominant strong atomic bonds in FeMoSi enhanced the hardness and wear resistance of the cladding layer. (C) 2009 Elsevier B.V. All rights reserved.
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2009.03.058
Appears in Collections:材料科學與工程學系

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