前言纯的Fe-C-Si合金中含有非常细小的,具有纤维状外观的石墨,这种石墨以铁素体为基体,通常称其为D-石墨。铸铁中常见的硫、氮、氧和其它元素会损害这种铸铁组织,并对其性能产生不良影响。为了抵消这些有害元素的作用,获得理想的组织和性能,需往铸铁中添加一些合金元素,钛正是 Preface Pure Fe-C-Si alloys contain a very fine, fibrous appearance of graphite, which is ferrite-based and is commonly referred to as D-graphite. Commonly found sulfur, nitrogen, oxygen and other elements in cast iron impair this cast iron structure and adversely affect its performance. In order to offset the role of these harmful elements, to obtain the desired organization and performance, need to add some alloying elements to the cast iron, titanium is