Study of Ni3 Al–Cr7 C3 coating fabricated by self-propagating high temperature synthesis casting route
Authors: La, P.Q.; Bai, M.W.; Xue, Q.J.; Liu, W.M.; Yu, L.G.
Source: Materials Science and Technology, Volume 16, Number 1, January 2000 , pp. 110-114(5)
Publisher: Maney Publishing
Abstract:A coating on carbon steel was fabricated by a self-propagating high temperature synthesis (SHS) casting route. The process is described in detail. The phases in the coating were examined using X-ray diffraction (XRD). The microstructures of the coating and the substrate were analysed using electron probe microanalysis (EPMA) and optical microscopy, respectively. The wear behaviour and microhardness of the coating were determined. The experimental results show that the coating was composed of Ni3 Al and Cr7 C3 phases and had a dense microstructure. Metallurgical bonding had formed between the coating and the substrate. The grain size of the substrate near the interface was coarsened. The wear resistance of the coating is better than that of a bearing steel or a Ni3 Al coating. The microhardness of the coating is higher than that of a Ni3 Al coating or the substrate.
Document Type: Regular Paper
Affiliations: The Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, People's Republic of China
Publication date: 2000-01-01
Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.Materials Science and Technology is the successor of two previous titles, for which digitised archives are available: Metal Science (Vols. 1—17; 1967—84) and Metals Technology (Vols. 1—11; 1974—84).
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