灰铸铁磷化过程及其机理研究  

PROCESS AND MECHANISM OF PHOSPHATING FOR GRAY CAST IRON

作　　者：卜金纬[1] 黄根良[1] 

机构地区：[1]江苏大学材料科学与工程学院

出　　处：《腐蚀科学与防护技术》2006年第5期345-347,共3页Corrosion Science and Protection Technology

摘　　要：通过对灰铸铁锌钙系磷化过程及其机理的研究,初步确定了磷化膜在灰铸铁基体表面的形核、长大规律.结果表明,磷化膜晶核首先在铁素体—石墨界面等处形成,是一个不均匀形核过程.磷化形核需要孕育期.The regulation of nucleation and growth of phosphate film on gray cast iron was studied for the phosphating process with a bath of Zn-Ca system. The results indicate that phosphate film forms at first at the boundaries between ferrite and graphite. This phosphating process is a non-homogenous nucleation process, which needs an inocubation period.

关 键 词：磷化膜 形核 长大 

分 类 号：TG174.42[金属学及工艺—金属表面处理]