| Behaviour of Rare Earths in Solid Solution in Steel |
| |
| 作者姓名： | 林勤 叶文 杜垣胜 余宗森 |
| |
| 作者单位： | Department of Physical Chemistry University of Science and Technology Beijing，100083，China.，Department of Physical Chemistry，University of Science and Technology Beijing，100083，China.，Department of Physical Chemistry，University of Science and Technology Beijing，100083，China.，Department of Physical Chemistry，University of Science and Technology Beijing，100083，China. |
| |
| 摘 要： | The contents of rare earth metals(REM) insolid solution in 16 Mn steel were determined bymeans of inductive coupling plasma (ICP)spectroscopy.The amount of REM in solid solutionis only a few ppm in the steel with MnS inclusions,which rises slightly with the increasing of REMcontent in steel.At RE/S>1.9,the MnS inclu-sions in steel disappear completely,the REM con-tent in solid solution increases rapidly with the in-creasing of REM content.The solubility of ceriumin 16 Mn steel(st 52)is less than 0.011 wt—％ atroom temperature.The results obtained indicate that REM in sol-id solution reduce the amount of pearlite and in-crease that of ferrite and its microhardness.Dis-solved REM oculd increase temperature of criticalpoints,alleviate band structnre and suppressgrowth of austenite grains.
|
| 收稿时间： | 1990-11-28 |
Behaviour of Rare Earths in Solid Solution in Steel |
| |
| LIN Qin,YE Wen,DU Yuansheng,YU Zongsen.Behaviour of Rare Earths in Solid Solution in Steel[J].Journal of Materials Science & Technology,1990,6(6):415-420. |
| |
| Authors: | LIN Qin YE Wen DU Yuansheng YU Zongsen |
| |
| Affiliation: | LIN Qin,YE Wen,DU Yuansheng,YU Zongsen Department of Physical Chemistry,University of Science and Technology Beijing,,China. |
| |
| Abstract: | The contents of rare earth metals(REM) in solid solution in 16 Mn steel were determined by means of inductive coupling plasma (ICP) spectroscopy.The amount of REM in solid solution is only a few ppm in the steel with MnS inclusions, which rises slightly with the increasing of REM content in steel.At RE/S>1.9,the MnS inclu- sions in steel disappear completely,the REM con- tent in solid solution increases rapidly with the in- creasing of REM content.The solubility of cerium in 16 Mn steel(st 52)is less than 0.011 wt—% at room temperature. The results obtained indicate that REM in sol- id solution reduce the amount of pearlite and in- crease that of ferrite and its microhardness.Dis- solved REM oculd increase temperature of critical points,alleviate band structnre and suppress growth of austenite grains. |
| |
| Keywords: | rare earth inductive coupling plasma solid solution |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《材料科学技术学报》浏览原始摘要信息 |
|
点击此处可从《材料科学技术学报》下载全文 |
