Development of High-Performance Enamel Coating on Grey Iron by Low-Temperature Sintering

Materials

Jinghua Jiang¹  Dan Song¹  Falin Yang¹  Jiapeng Sun¹  Aibin Ma¹  Ren Tang¹  Yanxin Qiao² 

[1] College of Mechanics and Materials, Hohai University, Nanjing 210098, China;School of Materials Science and Engineering, Jiansgu University of Science and Technology, Zhenjiang 215004, China;

关键词: enamel coating;    low-temperature sintering;    microstructure characteristic;    friction and wear property;   

DOI  :  10.3390/ma11112183

来源: DOAJ

【 摘 要 】

In this study, we report on a low-temperature sintered enamel coating with a high-strength bonding and wear-resistance that protected a grey cast iron substrate. The SiO₂⁻Al₂O₃⁻B₂O₃ composited prescription for the enamel coating was modified by the partial substitutions of SiO₂ for B₂O₃ and alkali metals for Li₂O. The optimized enamel coating was prepared by sintering at a relatively low temperature (730 °C) for seven minutes. Due to the composition of both the amorphous and crystalline phases, the enamel coating presented sufficient hardness and excellent wear resistance. The wear volume loss and the specific wear rate of the enamel coating were obviously lower than that of the metal substrate. The enamel coating can effectively improve the service life of the grey cast iron substrate in a complex frictional environment.

【 授权许可】

Unknown