Novel mechanism for the modification of Al2O3-based inclusions in ultra-low carbon Al-killed steel considering the effects of magnesium and calcium
Novel mechanism for the modification of Al2O3-based inclusions in ultra-low carbon Al-killed steel considering the effects of magnesium and calcium
复制标题
考虑镁和钙影响的超低碳铝镇静钢中Al2O3系夹杂物变质新机制
DOI：
10.1007/s12613-018-1571-1
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发表时间：
2018-03
影响因子：
4.8
通讯作者：
Mei Ya guang
中科院分区：
文献类型：
--
作者：
Guo Jing;Cheng Shu sen;Guo Han jie;Mei Ya guang
许多研究者对钢中夹杂物的变质机理进行了探索，以提高钢中非金属夹杂物的变质效果。采用不同Mg、Ca含量的超低碳铝镇静钢进行了两种钢液夹杂物变性工业试验，以验证炉外精炼过程中Ca、Mg含量对Al 2 O3基夹杂物变性机理的影响。结果表明，加入适量的Ca可使Al 2 O3基夹杂物变质为液态铝酸钙或多元夹杂物。此外，钢液中的[Mg]可进一步还原液态铝酸钙中的CaO，促使其演变为CaO-MgO-Al 2 O3多元夹杂物。热力学分析表明，当液态铝酸钙中MgO含量小于3wt%，温度高于1843 K时，[Mg]与CaO发生反应。
Many researchers have explored the inclusion modification mechanism to improve non-metallic inclusion modifications in steelmaking. In this study, two types of industrial trials on inclusion modifications in liquid steel were conducted using ultra-low-carbon Al-killed steel with different Mg and Ca contents to verify the effects of Ca and Mg contents on the modification mechanism of Al2O3-based inclusions during secondary refining. The results showed that Al2O3-based inclusions can be modified into liquid calcium aluminate or a multi-component inclusion with the addition of a suitable amount of Ca. In addition, [Mg] in liquid steel can further reduce CaO in liquid calcium aluminate to drive its evolution into CaO–MgO–Al2O3multi-component inclusions. Thermodynamic analysis confirmed that the reaction between [Mg] and CaO in liquid calcium aluminate occurs when the MgO content of liquid calcium aluminate is less than 3wt% and the temperature is higher than 1843 K.
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影响因子：
1.8
作者：
Suito, H;Inoue, R
通讯作者：
Inoue, R
影响因子：
1.8
作者：
Woo-Yeol Cha;Dong-Sik Kim;Yong-Deuk Lee;J. Pak
通讯作者：
Woo-Yeol Cha;Dong-Sik Kim;Yong-Deuk Lee;J. Pak
DOI：
--
发表时间：
2014-02
期刊：
--
影响因子：
--
作者：
郭靖;程素森;程子建
通讯作者：
郭靖;程素森;程子建
添加Mg对Al-Ca脱氧熔体中夹杂物演变的影响
影响因子：
1.8
作者：
Tong-sheng ZHANG;Yi MIN;Cheng-jun LIU;Mao-fa JIANG
通讯作者：
Mao-fa JIANG
影响因子：
1.8
作者：
G. Jing;Cheng Shu-sen;Chen Zi-jian
通讯作者：
G. Jing;Cheng Shu-sen;Chen Zi-jian