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Microstructure and Properties of Fe-Based Coating on Column Surface Formed by High Frequency Induction Cladding

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Author(s): Qing Zhao | Xiangcai Jia | Jingchao Zhang | Sumeng Hu | Huilong Yang | Yufu Sun | Jingjie Shen

Journal: Advances in Molecular Imaging
ISSN 2161-6728

Volume: 02;
Issue: 01;
Start page: 40;
Date: 2012;
Original page

Keywords: High Frequency Induction Cladding | Fe-Based Coating | Microstructure | Wear Resisitance

ABSTRACT
The Fe-based coating was produced on the surface of the column substrate with a Al2O3 cylindrical sleeve by high fre- quency induction cladding, microstructure of the coating was investigated with scanning electron microscope (SEM), the crystal structure was characterized by X-ray diffractometer (XRD), the microhardness and wear resisitance of the coating were evaluated. The results show that a metallurgical bond between coating and substrate was obtained during the rapid solidification, the phases of the coating were composed of austenite and the eutectic of γ-Fe + (Cr, Fe)7(C, B)3. Compared with the substrate, the microhardness and wear resistance of the coating improved apparently, solid-solution strengthening and second-phase particle hardening led to these results.
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