铸造烧结VC-Fe基表面复合材料

Surface Compound Material VC-Fe by Cast-sintering Method

利用铸造烧结新技术 ,在铸件表面原位生成 1层厚为 3～ 4mm由大量VC颗粒和Cr的碳化物组成的复合材料 ;通过对复合材料层组织结构的研究和热力学分析 ,对铸造烧结机理作了初步研究 ;指出铸造烧结与铸渗原理是不同的。

Using a new cast sintering technique, a surface composites with thickness of 3～4 mm, which consists of chromium carbides and a mass of VC particles, was synthesized on a surface of cast iron. The study of mechanism of cast sintering was made with the help of their microstructures and thermodynamic analysis. At the same time the theoritical difference between cast sintering and cast infiltrating was analysed.