蠕墨铸铁的石墨形态是介于片状石墨和球状石墨之间的一种中间形态石墨。由于这个原因,它的材质性能也介于片状石墨铸铁和球墨铸铁之间。它具有接近于灰铸铁的铸造性能和导热性,并具有接近于球墨铸铁的强度。所以它作为一种新的工程材料愈来愈引起人们的注意,并已被应用于生产。实际上,蠕墨铸铁的发现有史已久。1948年Morrogh在研究用铈处理球铁的过程中,即发现了蠕墨铸铁,不过,当时他认为是球化失败的产物。直到1965年,才由J.W. Graphite in vermicular graphite iron is an intermediate form of graphite between flake graphite and spherical graphite. For this reason, its material properties are also between flake graphite cast iron and ductile iron. It has castability and thermal conductivity close to gray cast iron and has strength close to ductile iron. Therefore, it has drawn more and more attention as a new engineering material and has been applied to production. In fact, the complication of CGI has been around for a long time. In 1948 Morrogh studied vermicular graphite cast iron in the course of its study of the treatment of ductile iron with cerium, however, when he considered it a product of the failure of spheroidization. It was not until 1965 that J.W.