Morphology and chemistry of oxide inclusions after Al and Ti complex deoxidation
Morphology and chemistry of oxide inclusions after Al and Ti complex deoxidation
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DOI：
10.3365/met.mat.2008.12.791
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发表时间：
2008-12
影响因子：
3.5
通讯作者：
Min-Ki Sun;I. Jung;Hae-geon Lee
中科院分区：
文献类型：
--
作者：
Min-Ki Sun;I. Jung;Hae-geon Lee
在1600℃下研究了不同Al和Ti络合物脱氧顺序后的氧化物包体的形态和化学性质。根据Al和Ti脱氧剂的加入顺序和保温时间的不同，形貌和化学性质发生了变化。特别是先加入Ti后加入Al时，经常观察到带有空心孔的球形Al2O3氧化物夹杂物，这是首次报道。另一方面，当Al先于Ti加入时，形成Al2O3夹杂物。当Al和Ti同时加入时，开始形成Al - Ti - O氧化物夹杂物，然后转变为Al2O3夹杂物。根据实验结果，提出了Al - Ti脱氧后氧化包体的形成机理。根据实验结果，对含钛铝淬火钢喷嘴堵塞问题进行了讨论。
The morphology and chemistry of oxide inclusions after various Al and Ti complex deoxidation sequences were investigated at 1600°C. Depending on the addition sequence of Al and Ti deoxidants and the holding time, the morphology and the chemistry were changed. In particular, when Ti was added prior to Al, spherical Al2O3 oxide inclusions with hollow holes were frequently observed, which is reported for the first time. On the other hand, when Al was added prior to Ti, Al2O3 inclusion formed. When Al and Ti were added simultaneously, Al−Ti−O oxide inclusion formed in the beginning and was transformed to Al2O3 inclusion. Based on the experimental results, the formation mechanism of the oxide inclusions after Al−Ti deoxidation was proposed. The nozzle clogging of Ti bearing Al killed steel was also discussed based on the experimental results.