不同溫度下60Si2MnA彈簧鋼中低熔點夾雜物生成熱力學

張博; 王福明; 李長榮; 吳華林

doi:10.13374/j.issn1001-053x.2011.03.013

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不同溫度下60Si2MnA彈簧鋼中低熔點夾雜物生成熱力學

doi: 10.13374/j.issn1001-053x.2011.03.013

張博^1,2, ,,
王福明^1,2,
李長榮³,
吳華林^1,2

1. 北京科技大學冶金與生態工程學院, 北京 100083;
2. 北京科技大學生態與循環冶金教育部重點實驗室, 北京 100083;
3. 北京科技大學材料科學與工程學院, 北京 100083

基金項目:

北京市教育委員會共建項目專項

國家自然科學基金資助項目(No.50874007)

詳細信息

通訊作者:
張博,E-mail:bozhang918@163.com

中圖分類號: TF701.2
計量
- 文章訪問數: 135
- HTML全文瀏覽量: 26
- PDF下載量: 5
- 被引次數: 0
出版歷程
- 收稿日期: 2010-05-20
- 網絡出版日期: 2021-07-30

Thermodynamics on formation of low melting point inclusions at different temperatures in 60Si2MnA spring steel

ZHANG Bo^{1,2
, ,},
WANG Fu-ming^1,2,
LI Zhang-rong³,
WU Hua-lin^1,2

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Key Lab of the Ministry of Education of China for Ecologic & Recycle Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;
3. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 借助FactSage熱力學軟件分別對1873、1823和1773 K三個不同溫度下60Si2MnA彈簧鋼液與MnO-SiO₂-Al₂O₃系、CaO-Al₂O₃-SiO₂系和CaO-Al₂O₃-SiO₂-15%MgO系夾雜物間的平衡進行了計算.通過上述計算分析,確定了三個不同溫度下分別形成上述低熔點夾雜物時所對應的鋼液成分.經過對比還發現:低溫更有利于鋼液在低溶解氧含量條件下實現上述不同類型夾雜物的低熔點化控制.鋼液中生成低熔點SiO₂-Al₂O₃-CaO-15%MgO系夾雜物要比生成低熔點SiO₂-Al₂O₃-CaO系夾雜物所需的鋼液Al含量高很多,這在實際生產中更容易控制.
- 彈簧鋼 /
- 夾雜物 /
- 熱力學 /
- 計算機軟件
Abstract: Equilibria between 60Si2MnA molten spring steel and such low melting point inclusions as MnO-SiO₂-Al₂O₃ inclusions, CaO-Al₂O₃-SiO₂ inclusions and CaO-Al₂O₃-SiO₂-15% MgO inclusions were thermodynamically studied by the thermodynamic software FactSage at three different temperatures of 1 873, 1 823 and 1 773 K. On the basis of these calculations, the compositions of the liquid steel were determined when these low melting point inclusions formed at the different temperatures. Simultaneously, it was also discovered by comparison that low temperature is more beneficial to fulfill the control of the low melting point inclusions under the condition of low soluble oxygen content. The soluble aluminum content for the formation of CaO-Al₂O₃-SiO₂-15% MgO inclusions is much higher than that for the formation of CaO-Al₂O₃-SiO₂ inclusions, and it is easily controlled in actual production.
- spring steel /
- inclusions /
- thermodynamics /
- computer software