| 超低氧钢中复合夹杂物形成的实验室研究简 |
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| 引用本文： | 杨叠,姜敏,雷少龙,王新华,王万军.超低氧钢中复合夹杂物形成的实验室研究简[J].钢铁研究学报,2014,26(1):12-15. |
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| 作者姓名： | 杨叠 姜敏 雷少龙 王新华 王万军 |
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| 作者单位： | 北京科技大学冶金与生态工程学院, 北京 100083 |
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| 摘 要： | 通过实验室真空感应炉试验，研究了超低氧条件下钢中复合非金属夹杂物的形成。研究发现：在含有一定硫的超低氧钢中高熔点氧化物夹杂很少，大部分为MnS。钢中Al2O3的尺寸较MgO-Al2O3系夹杂要大。以高熔点夹杂物为异质形核核心析出的MnS能显著提高钢材的疲劳寿命，此种复合夹杂物的形成与钢液成分、高熔点夹杂物的尺寸有关。
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| 关 键 词： | 超低氧 疲劳 复合夹杂物 寿命 |
Laboratory Study on Formation of Complex Inclusions in Ultra-Low Oxygen Steel |
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| YANG Die,JIANG Ming,LEI Shao-long,WANG Xin-hua,WANG Wan-jun.Laboratory Study on Formation of Complex Inclusions in Ultra-Low Oxygen Steel[J].Journal of Iron and Steel Research,2014,26(1):12-15. |
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| Authors: | YANG Die JIANG Ming LEI Shao-long WANG Xin-hua WANG Wan-jun |
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| Affiliation: | School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | Investigation was made in laboratorial on formation of complex inclusions in steels which contained ultra-low oxygen by vacuum induction furnace. It is found that MnS is the main inclusion in the ultra-low oxygen steel containing a certain S content, and the number of high melting point oxide inclusions is smaller. The size of Al2O3 inclusion is often larger than that of MgO-Al2O3 spinel. MnS which precipitated from high melting point inclusions as heterogeneous nucleus can significantly improve the fatigue life of the steel, the formation of such complex inclusions steel is related to steel compositions and the size of high melting point inclusions. |
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| Keywords: | ultra-low oxygen fatigue complex inclusion life |
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