铝合金化D型石墨铸铁

D-Type graphite cast iron with aluminum

研究铝对灰铸铁组织和性能的影响 ,解释了铝对灰铸铁组织和性能作用的机理 .实验表明 ,不同含量的铝对灰铸铁组织和性能产生不同的影响 .当铝含量小于 0 .18% ,铝促进灰铸铁D型石墨的形成 ,同时一定含量范围内改善灰铸铁石墨形态 ,并提高灰铸铁的强度性能 .

The paper examines the behaviors of aluminum in the grey cast iron, revealing the influence of aluminum on the structures and properties of cast iron. The experiment shows that the variable contents of aluminum make different influence on the structures and properties of cast iron. With proper contents, aluminum develop D-type graphite and the surface of A- type graphite.