Ductile Iron: History, Engineering Properties and Applications

摘要：

　　Cast iron is a generic term for a family of high carbon,high silicon iron alloys.All cast irons contain at least 2%carbon which exceeds the solubility limit in iron.During solidification,carbon precipitates out of solution to form a solid particle of graphite.Gray cast irons contain graphite in the form of flakes.Ductile cast irons contain graphite in the form of spheres or nodules.Gray irons tend to be relatively weak and brittle while ductile iron is much stronger and has properties similar to carbon steel.The graphite nodules also enhance machinability,acting as a chip breaker and providing a lubricating surface between the workpiece and tool.This paper explains the metallurgical characteristics of ductile iron,engineering properties and opportunities for cost reduction by converting from carbon steel to ductile iron.

关键词： ductile Iron continuous casting machinability advantage steel conversion

作者: Bob O”Rourke Nan Sun

作者单位: Hualong Continuous Cast Iron Bar Stock,Jiangsu 212132,Zhenjiang,China Jiangsu University,Jiangsu 212003,Zhenjiang,China

会议类型: 国内会议

会议名称: 第十二届中国铸造协会年会暨全球首届铸造论坛、第六届中国金砖国家铸造业论坛

会议地点: 北京

会议语种:英文

页码: 78-80

在线出版日期: 2016-05-14（万方平台首次上网日期，不代表论文的发表时间）