铸渗法制备SiC颗粒增强钢基表面复合材料的热力学分析

Thermodynamics Analysis of SiC Reinforced Steel Matrix Surface Composite Prepared by Casting Infiltration Method

铸渗法是目前制备颗粒增强表面复合材料的主要方法。通过试验和热力学分析得到了采用V-EPC铸渗法制备SiC颗粒增强钢基表面复合材料时SiC粒子在钢水铸渗过程中分解的热力学依据。通过改变试验条件和方案,可有效延缓碳化硅粒子的分解速度,从而达到制备出复合效果良好的SiC增强钢基表面复合材料。

The casting-infiltration method is one of the main means of preparing particles reinforced surface composite. The test and thermodynamics analysis indicates that SiC particles can be decomposed when the surface composite is prepared by V-EPC casting-infiltration method. The decomposition rate of SiC particles can be postponed when the testing conditions change, and the surface composite with good compose effect can be prepared. The thermodynamics of decomposition of SiC particles during casting-infiltration was analyzed.