| 离心球墨铸铁管的组织及退火工艺研究 |
| |
| 引用本文： | 王玉峰,刘宗昌,朱文方,陈龙. 离心球墨铸铁管的组织及退火工艺研究[J]. 金属热处理, 2002, 27(10): 38-41 |
| |
| 作者姓名： | 王玉峰 刘宗昌 朱文方 陈龙 |
| |
| 作者单位： | 1. 包头钢铁学院,材料系,包头,014010
2. 抚顺特殊钢有限责任公司,抚顺,113001 |
| |
| 摘 要： | 从大型离心球墨铸铁管上取样，用光学金相、电子金相法研究了铸造和不同退火状态下的离心球墨铸铁的组织，实行了低温退火新工艺。研究表明，采用低温退火，使片状珠光体转变为粒状珠光体，并且控制粒状珠光体量为15%-25%，其余为铁素体 石墨，具有良好的综合力学性能。
|
| 关 键 词： | 组织 退火工艺 球墨铸铁 离心铸管 珠光体 石墨 |
| 文章编号： | 0254-6051(2002)10-0038-04 |
Microstructure and Mechanical Properties of Large Diameter Centrifugal Casting Ductile Iron Pipe and Its Annealing Process |
| |
| WANG Yu-feng ,LIU Zong-chang ,ZHU Wen-fang ,CHENG Long. Microstructure and Mechanical Properties of Large Diameter Centrifugal Casting Ductile Iron Pipe and Its Annealing Process[J]. Heat Treatment of Metals, 2002, 27(10): 38-41 |
| |
| Authors: | WANG Yu-feng LIU Zong-chang ZHU Wen-fang CHENG Long |
| |
| Affiliation: | WANG Yu-feng 1,LIU Zong-chang 1,ZHU Wen-fang 2,CHENG Long 2 |
| |
| Abstract: | Microstructure of centrifugal casting ductile iron and its microstructure after different annealing processes were investigated by means of electronic metallography.All samples were from large diameter centrifugal casting ductile iron pipes.A new low temperature annealing process was carried out.As result is showing,lamelar pearlite is transforming granular pearlite after a low temperature annealing,the quantity of granular pearlite is being confined of 15 percent to 25 percent,the other is ferrite and graphite.This kind of microstructure is revealing good comprehensive mechanical properties. |
| |
| Keywords: | ductile iron centrifugal casting pipe pearlite graphite |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
