会议专题

Performance of Reactive Plasma Cladding TiC Particle Reinforced High Chromium Fe-based Ceramics Composite Coating

  The in-situ synthesized TiC particle reinforced high chromium Fe-based ceramics composite coating was fabricated on the substrate of Q235 steel by plasma cladding process using Fe-Cr-Ti-C composite powder as reactive material.Microstructure of the coating was observed by scanning electron microscope (SEM),the phases were determined by X-ray diffraction (XRD),and the wear resistance was evaluated under dry sliding wear test conditions at room temperature.Results indicate that the composite coating consists of the reinforcing TiC carbide,(Cr,Fe)7C3 eutectic as well as austenite,and is metallurgically bonded to the Q235 steel substrate.The gradient distribution of TiC carbides is observed.TiC particles present in the granular shape in the fusion zone and central zone while present in the dendritic shape on the surface of the composite coating.Hardness of the coating from surface to fusion zone varies a little; the average hardness of the coating is about HV0.2750 which is 3.2 times as much as that of the base.The wear mass loss of Q235 base material is 13 times higher than that of the composite coating.

reactive plasma cladding TiC particle coating in-situ synthesis ceramics

Limei Wang

School of Information and Control Engineering, Weifang University, Weifang 261061, China

国际会议

the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

厦门

英文

1032-1035

2012-01-04(万方平台首次上网日期,不代表论文的发表时间)