[1]郭俊波,王丽君,刘延强,等.高铁弹条钢夹杂物塑性化控制的热力学分析[J].中国材料进展,2011,(12):027-32.
　GUO Junbo,WANG Lijun,LIU Yanqiang,et al. Thermodynamic Analysis of Control on Plasticization of Non Metallic Inclusions in the Spring Steel of High Speed Railway[J].MATERIALS CHINA,2011,(12):027-32.
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高铁弹条钢夹杂物塑性化控制的热力学分析()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2011年第12期
页码:
027-32
栏目:
特约研究论文
出版日期:
2011-12-25

文章信息/Info

Title:
 Thermodynamic Analysis of Control on Plasticization of Non Metallic Inclusions in the Spring Steel of High Speed Railway
作者:
郭俊波1; 王丽君1; 刘延强1; 周国治1; 2
(1.北京科技大学 钢铁冶金新技术国家重点实验室，北京 100083)
(2.上海大学材料科学与工程学院，上海 200072)
Author(s):
 GUO Junbo1;  WANG Lijun1;  LIU Yanqiang1; ZHOU Guozhi1; 2
 (1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083,China)
(2. School of Materials Science and Engineering, Shanghai University, Shanghai 200072,China)
关键词:
 ; 弹条钢; 低熔点区域; CaO SiO2Al2O3; 夹杂物; 热力学平衡
文献标志码:
A
摘要:
    提高高铁弹条钢的疲劳性能，除了要求弹条钢具有较高的纯净度外，还必须控制弹条钢中的非金属夹杂物。弹条钢中存在的脆性和不变形非金属夹杂物是弹条钢疲劳断裂的重要原因，所以必须控制弹条钢中的夹杂物为低熔点和具有良好的变形能力。借助Factsage热力学计算软件对1 873 K时钢液与夹杂物间的平衡进行了计算，确定了生成具有良好变形能力的低熔点CaO SiO2Al2O3系夹杂物所需要的钢液成分。结果表明：将夹杂物的成分控制在CaO SiO2Al2O3系的低熔点区域2中时，钢液中的溶解氧含量为(1~3)×10-6,远远低于将夹杂物成分控制在低熔点区域1中时的溶解氧的含量，此时可以同时实现夹杂物塑性化和钢液纯净化的要求。
Abstract:
    To improve the fatigue property of spring steel used in highspeed railway,besides the requirement of high cleanliness of spring steel, the nonmetallic inclusions are needed to be controlled. Brittle inclusions and point like inclusions are the important reasons of fatigue fracture for spring steel. Therefore, it is essential to control the inclusions composition to the target of low melting point and good deformation capacity.
更新日期/Last Update: 2012-01-19