Influence of FeO and sulfur on solid state reaction between MnO-SiO2-FeO oxides and an Fe-Mn-Si solid alloy during heat treatment at 1473 K

被引：12
|
作者：
Liu, Cheng-song [1 ]
Yang, Shu-feng [1 ]
Kim, Kyung-ho [2 ]
Li, Jing-she [1 ]
Shibata, Hiroyuki [2 ]
Kitamura, Shin-ya [2 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan
来源：
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2015年 / 22卷 / 08期
基金：
中国国家自然科学基金;
关键词：
refining; solid state reactions; heat treatment; inclusions; iron oxides; sulfur; INCLUSIONS; IRON;
D O I：
10.1007/s12613-015-1138-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To clarify the influence of FeO and sulfur on solid state reaction between an Fe-Mn-Si alloy and MnO-SiO2-FeO oxides under the restricted oxygen diffusion flux, two diffusion couples with different sulfur contents in the oxides were produced and investigated after heat treatment at 1473 K. The experimental results were also compared with previous work in which the oxides contained higher FeO. It was found that although the FeO content in the oxides decreased from 3wt% to 1wt% which was lower than the content corresponding to the equilibrium with molten steel at 1873 K, excess oxygen still diffused from the oxides to solid steel during heat treatment at 1473 K and formed oxide particles. In addition, increasing the sulfur content in the oxides was observed to suppress the diffusion of oxygen between the alloy and the oxides.
引用
收藏
页码：811 / 819
页数：9
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