| 易切削钢中夹杂物及锡的形态 |
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| 引用本文： | 李联生,朱荣,孙彦辉,郭汉杰,殷浩,董杰. 易切削钢中夹杂物及锡的形态[J]. 北京科技大学学报, 2004, 26(5): 471-473 |
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| 作者姓名： | 李联生 朱荣 孙彦辉 郭汉杰 殷浩 董杰 |
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| 作者单位： | 1. 北京科技大学冶金及生态工程学院,北京,100083
2. 莱芜钢铁股份有限公司技术中心,莱芜,271104 |
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| 基金项目： | 国家自然科学基金委员会和上海宝钢集团公司联合资助项目 |
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| 摘 要： | 研制了一种新型含锡易切削钢.在锡含量小于0.05%(质量分数)时,钢材具有良好的易切削性能,其力学性能也达到了国家标准.在扫描电镜下观察了钢中夹杂物和断口的形貌,利用能谱分析了夹杂物的成分.结果表明,钢中的复合夹杂物主要由氧化物和Mns组成.多数呈球形或纺锤形,在断口及夹杂物的表面上锡明显偏析.
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| 关 键 词： | 易切削钢 锡 夹杂物 易切削性能 钢中夹杂物 形态 Steel Inclusions Distribution 偏析 表面 纺锤形 组成 氧化物 复合夹杂物 结果 成分 能谱分析 利用 断口 镜下观察 扫描 国家标准 |
| 修稿时间： | 2004-01-14 |
Form and Distribution of Inclusions and Tin in Free-cutting Steel |
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| LI Liansheng,ZHU Rong,SUN Yanhui,GUO Hanjie,YIN Hao,DONG JieMetallurgical and Ecological Engineering School,University of Science and Technology Beijing,Beijing ,ChinaTechnological Centre,Laiwu Steel Co. Ltd,Laiwu ,China. Form and Distribution of Inclusions and Tin in Free-cutting Steel[J]. Journal of University of Science and Technology Beijing, 2004, 26(5): 471-473 |
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| Authors: | LI Liansheng ZHU Rong SUN Yanhui GUO Hanjie YIN Hao DONG JieMetallurgical Ecological Engineering School University of Science Technology Beijing Beijing ChinaTechnological Centre Laiwu Steel Co. Ltd Laiwu China |
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| Affiliation: | LI Liansheng,ZHU Rong,SUN Yanhui,GUO Hanjie,YIN Hao,DONG JieMetallurgical and Ecological Engineering School,University of Science and Technology Beijing,Beijing 100083,ChinaTechnological Centre,Laiwu Steel Co. Ltd,Laiwu 271104,China |
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| Abstract: | A free cutting steel containing tin less than 0.05% in mass fraction was developed, which possesses good machinability and satisfactory mechanical properties meeting the national standard of China. The forms and distribution of inclusions and tin in the steel were investigated by observations of the steel samples and the fracture of the mechanical testing samples by means of SEM and EDS. The results showed that the complex inclusions, nodular or spindle-shaped, were composed mainly of oxides and mangnese sulphide. It was found that there were marked segregation of tin in the fracture and on the surfaces of inclusions in the steel. |
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| Keywords: | free cutting steel tin inclusions |
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