| 钙处理对2205双相不锈钢夹杂物的影响及热力学分析 |
| |
| 引用本文： | 刘崇,刘润藻,宋水根,朱荣,王宝华,沈汉.钙处理对2205双相不锈钢夹杂物的影响及热力学分析[J].工业加热,2017,46(4). |
| |
| 作者姓名： | 刘崇 刘润藻 宋水根 朱荣 王宝华 沈汉 |
| |
| 作者单位： | 1. 北京科技大学冶金与生态工程学院,北京100083;高端金属特种熔炼与制备北京市重点实验室,北京100083;2. 新余新良特殊钢有限责任公司,江苏新余,338013;3. 北京科技大学冶金与生态工程学院,北京100083;高端金属特种熔炼与制备北京市重点实验室,北京100083;河北钢铁集团承德分公司,河北承德067002;4. 万宝矿产有限公司,北京,100083 |
| |
| 摘 要： | 针对某钢厂2205双相不锈钢的生产工艺,取钙处理前后的钢样,研究钙处理对夹杂变性的效果。实验表明:钙处理后钢中的Al_2O_3、MgO-Al_2O_3夹杂物逐渐演变为MgO-Al_2O_3-CaO-(CaS),部分处于1 873 K温度下的液相区内,夹杂物的形状更加规则,但是还有少数的夹杂物变性效果不理想。通过热力学计算,得到了1 873 K时的Ca-Al、Al-S平衡曲线,得出了为避免生成固态铝酸钙、CaS理论上应满足的条件:即将w(Ca])、w(Al])含量控制在C_(12)A_7曲线附近。
|
| 关 键 词： | 夹杂物 钙处理 热力学 |
Influence and Thermodynamic Analysis of Calcium Treatment on Inclusions in 2205 Duplex Stainless Steel |
| |
| LIU Chong,LIU Runzao,Song Shuigen,ZHU Rong,WANG Baohua,SHEN Han.Influence and Thermodynamic Analysis of Calcium Treatment on Inclusions in 2205 Duplex Stainless Steel[J].Industrial Heating,2017,46(4). |
| |
| Authors: | LIU Chong LIU Runzao Song Shuigen ZHU Rong WANG Baohua SHEN Han |
| |
| Abstract: | Based on production process of 2205 duplex stainless steel,the effect of calcium treatment on inclusions degeneration was studied.The result shows that after calcium treatment the MgO-Al2O3 and A12O3 system inclusion evolves into the MgO-Al2O3-CaO-(CaS) system inclusion that are modified into spherical inclusion and some of those distribute in liquid phase zone under the temperature of 1 873 K,but the deformability of the minority of inclusions is feeblish accordingly.With the help of thermodynamic calculation the equilibrium curve for Ca-Al and Al-S at different treatment phase in 1 873 K and the theoretical conditions to avoid the formation of high melting point CaO· Al2O3 and CaS inclusions were obtained the theoretical conditions is to control the content of w(Ca])、w(Al]) near C~A7 curve. |
| |
| Keywords: | inclusions calcium treatment thermodynamics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
