| Characteristic Analysis of Solidified Crust for Basic Tundish Flux With Al-Killed Steel Casting | |
| Alternative Title | Characteristic Analysis of Solidified Crust for Basic Tundish Flux With Al-Killed Steel Casting |
| Wang Deyong; Zhang Zhixiang; Wang Huihua; Jiang Maofa | |
| 2011 | |
| Source Publication | JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
 |
| ISSN | 1006-706X |
| Volume | 18Issue:1Pages:16-19 |
| Abstract | The solidified crust was harmful to Al-killed steel casting using a basic tundish flux. After sampling from an actual tundish, XRD, SEM and EDX examinations were carried out to analyze the microstructure of solidified crusts. The conclusions were obtained as follows: main crystallization phases existing in tundish crust were Ca-12 A(14) O-33, Ca2SiO4 and a little spinel; spinel and Ca2SiO4 distributed between the grain boundaries of Ca-12 A(14) O-33, which increased the connection strength of crystallization phases by pinning grain boundary, density or hardness of solidified crust maybe also significantly increases; when initial composition of tundish flux was located in spinel region of CaO-SiO2-Al2O3-10%MgO phase diagram, it was easier to precipitate spinel from molten slag; three approaches of spinet formation in flux were summarized. When flux was saturated with magnesia on the metal/flux interface. MgO in flux was reduced by dissolved aluminum and then formed spinel. On the interface of steel/refractory, with feasible aluminum content, it was also easy to form spinel, and spinel inclusions will be floated and captured by tundish flux. |
| Other Abstract | The solidified crust was harmful to Al-killed steel casting using a basic tundish flux. After sampling from an actual tundish, XRD, SEM and EDX examinations were carried out to analyze the microstructure of solidified crusts. The conclusions were obtained as follows: main crystallization phases existing in tundish crust were Ca_(12) A_(14)O_(33), Ca_2SiO_4and a little spinel; spinel and Ca_2SiO_4distributed between the grain boundaries of Ca_(12)A_(14)O_(33), which increased the connection strength of crystallization phases by pinning grain boundary, density or hardness of solidified crust maybe also significantly increases; when initial composition of tundish flux was located in spinel region of CaO-SiO_2-Al_2O_3-10%MgO phase diagram, it was easier to precipitate spinel from molten slag; three approaches of spinel formation in flux were summarized. When flux was saturated with magnesia on the metal/flux interface, MgO in flux was reduced by dissolved aluminum and then formed spinel. On the interface of steel/refractory, with feasible aluminum content, it was also easy to form spinel, and spinel inclusions will be floated and captured by tundish flux |
| Keyword | FERRITIC STAINLESS-STEEL INCLUSION SLAG tundish flux solidified crust spinel formation approach |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] |
| CSCD ID | CSCD:4381652 |
| Citation statistics |
Cited Times:2[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/154629 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Wang Deyong,Zhang Zhixiang,Wang Huihua,et al. Characteristic Analysis of Solidified Crust for Basic Tundish Flux With Al-Killed Steel Casting[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2011,18(1):16-19. |
| APA | Wang Deyong,Zhang Zhixiang,Wang Huihua,&Jiang Maofa.(2011).Characteristic Analysis of Solidified Crust for Basic Tundish Flux With Al-Killed Steel Casting.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,18(1),16-19. |
| MLA | Wang Deyong,et al."Characteristic Analysis of Solidified Crust for Basic Tundish Flux With Al-Killed Steel Casting".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 18.1(2011):16-19. |
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