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

Huilong Yang, Yufu Sun, Jingjie Shen, Sumeng Hu, Qing Zhao, Xiangcai Jia, Jingchao Zhang

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DOI: 10.4236/jsemat.2012.21007                

Abstract

The Fe-based coating was produced on the surface of the column substrate with a Al2O3 cylindrical sleeve by high frequency 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.

Keywords

High Frequency Induction Cladding; Fe-Based Coating; Microstructure; Wear Resisitance

Conflicts of Interest

The authors declare no conflicts of interest.

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