O'-Sialon-ZrO_2-SiC复合材料的侵蚀及界面分形研究

Study on Corrosion and Fractals of O'-Sialon ZrO_2-SiC Composites

研究了O′ Sialon ZrO2 SiC复合材料在不锈钢液中的侵蚀行为。造成侵蚀的原因主要是不锈钢液通过侵蚀通道向材料内部扩散。分形研究表明 ,材料侵蚀界面的分形维数在 1 2 5～ 1 30之间且与侵蚀过程存在相应关系。

The corrosion behavior of O′ Sialon ZrO 2 SiC composites in molten stainless steel was studied. The results showed that the main reason of the corrosion of the O′ Sialon ZrO 2 SiC composites is the diffusion of the melted stainless steel from the grain boundary to the inner, the fractals dimension of erosion interfaces are ranged from 1.25 to 1.30, and related to the erosion process.