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做为内燃发动机零件,特别是缸套和气门导管的材料,在围外广泛采用磷铸铁。按文献所载,由这种铸铁制造的零件具有高耐磨性。然而在文献中却找不到这种铸铁的最佳成份和组织的选择依据。同时对国外一些发动机缸套和气门导管的磷铸铁的研究表明,通常在它们的组织中具有带片状渗碳体的磷共晶。以往曾经确认,磷共晶组织依赖于铸铁中硅和形成碳化物的合金元素(铬、钒、钼)的
As a material for internal combustion engine components, particularly cylinder liners and valve guides, phosphorus cast iron is widely used in the surroundings. According to the literature, parts made of this cast iron have high wear resistance. However, in the literature can not find the best composition of this cast iron and the basis for the choice of organization. At the same time, some foreign countries, engine cylinder liner and valve guide of phosphorus cast iron show that they usually have in their organization with flake cementite phosphorus eutectic. It has been previously confirmed that the phosphorus eutectic structure relies on the presence of silicon and carbide-forming alloying elements (chromium, vanadium, molybdenum) in the cast iron