Nucleation and growth kinetics of inclusions during liquid steel deoxidation
Nucleation and growth kinetics of inclusions during liquid steel deoxidation
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DOI：
10.1179/030192303225001766
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发表时间：
2003-04
影响因子：
2.1
通讯作者：
Lifeng Zhang;W. Pluschkell
中科院分区：
文献类型：
--
作者：
Lifeng Zhang;W. Pluschkell
对钢液脱氧过程中固体夹杂物的形核和长大现象进行了数值研究。结果表明，原子扩散、奥斯特瓦尔德熟化效应和布朗运动共同控制了小尺寸颗粒的生长。看来这个初始降水阶段仅持续约10秒。当颗粒直径超过〜1μm的阈值时，生长过程以颗粒碰撞和团聚为主。这些机制的效率取决于生长过程中产生的粒度分布。目前，由于计算机能力有限，综合评价仍然受到阻碍。
The phenomenon of solid inclusion nucleation and growth during the liquid steel deoxidation process is studied numerically. It is shown that the diffusion of atoms, the Ostwald ripening effect, and Brownian movement together control the growth of small size particles. It appears that this stage of initial precipitation lasts for only about 10 s. When the particle diameter exceeds a threshold of ∼1 μm, the growth process becomes dominated by particle collisions and agglomeration. The efficiency of these mechanisms depends on the particle size distribution as produced during growth. Comprehensive evaluations are still impeded by the limited capacity of computers at present.