[1]裴立新,徐振宇,李大勇. 铁水氧含量快速检测法评价球墨铸铁球化效果[J].哈尔滨理工大学学报,2018,(01):30-34.[doi:10. 15938 /j. jhust. 2018. 01. 006]
 PEI Li-xin,XU Zhen-yu,LI Da-yong. Nodularization Effect Evaluationof Ductile Iron basedon Quick Testing Oxygen Content in Liquid Iron[J].哈尔滨理工大学学报,2018,(01):30-34.[doi:10. 15938 /j. jhust. 2018. 01. 006]
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 铁水氧含量快速检测法评价球墨铸铁球化效果()
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
期数:
2018年01期
页码:
30-34
栏目:
材料科学与工程
出版日期:
2018-02-25

文章信息/Info

Title:
 Nodularization Effect Evaluationof Ductile Iron based
on Quick Testing Oxygen Content in Liquid Iron
文章编号:
1007- 2683( 2018) 01- 0030- 05
作者:
 裴立新 徐振宇 李大勇
 ( 哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040)
Author(s):
 PEI Li-xin XU Zhen-yu LI Da-yong
 ( School of Material Science and Engineering,Harbin University of Science and Technology,Harbin 150040,China)
关键词:
 球墨铸铁 氧活度 氧电势 冶金原理 球化状态
Keywords:
 ductile iron oxygen activity oxygen potential metallurgical theory nodularization status
分类号:
TG143. 5
DOI:
10. 15938 /j. jhust. 2018. 01. 006
文献标志码:
A
摘要:
 为了探究用氧含量来评价铁水球化孕育效果的方法,使用氧浓差电池在线检测法研究
了球墨铸铁不同球化状态铁水制备过程中的氧含量。结果表明,在铁水中氧活度αo
和氧电势Eo

铁水含氧状态表征上存在差异。通过对浓差电池法铁水氧含量检测热力学和铸铁石墨球化冶金原
理分析,可知温度和氧平衡状态是导致αo
和Eo
测试出现偏差的主要因素。分析了单参数方法( αo
)
评价球化率的不足,给出了双参数法( αo
和Eo
) 来评价球化率,并初步阐述了其冶金意义。
Abstract:
 In order to explore the evaluation method of nodularization effect in iron melting through oxygen
content,the active oxygen content was tested on-line in the preparation of nodularized melting with different
nodularizing status by oxygen concentration cell. The results showed that there was an obvious difference between
oxygen activity αo and oxygen potential Eo in the characterization of oxygen content status in the iron melting. By
thermodynamics and metallurgical theory analysis of the oxygen concentration cell and graphite spheroidization in
iron melting,the testing temperature and oxygen balance status in the iron melting might be the main causes leading
to the difference between αo and Eo. Accordingly,the disadvantage of single parameter method by αo to evaluation
spheroidization rate was analyzed, and simultaneously the two-parameter method combined αo with Eo was
investigated for nodularization evaluation. Finally,the metallurgical implications of the αo and Eo were further
explained

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更新日期/Last Update: 2018-05-04