Academic Journal
Microsegregation in low carbon Fe-Mn-Si-Al TWIP steel
| العنوان: | Microsegregation in low carbon Fe-Mn-Si-Al TWIP steel |
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| المؤلفون: | LI Shi-qi, LIU Jian-hua, LIU Hong-bo, CHI Xiao-hao, LI Kang-wei, HAN Zhi-biao |
| المصدر: | 工程科学学报, Vol 38, Iss 7, Pp 937-944 (2016) |
| بيانات النشر: | Science Press, 2016. |
| سنة النشر: | 2016 |
| المجموعة: | LCC:Mining engineering. Metallurgy LCC:Environmental engineering |
| مصطلحات موضوعية: | low carbon steel, twip steel, microsegregation, dendrites, grain boundaries, silicon content, Mining engineering. Metallurgy, TN1-997, Environmental engineering, TA170-171 |
| الوصف: | Microsegregation in low carbon Fe-25Mn-3Si-3Al TWIP steel produced in the laboratory and steel plant were systematically investigated by electron microprobe analysis. The results show that the dendritic segregation is serious in both the laboratorial ingot and mold casting after AOD steelmaking at the industrial plant. Additionally,microsegregation in the AOD ingot is higher,and the greatest amounts of segregation of Mn and Al are measured to be 6.8% and 2.4%,respectively. After electroslag remelting in the steel plant,the grain boundary segregation is serious,and it completely improves after a forging process. A higher alloy composition and a wider crystallization temperature interval are the main reasons for the serious microsegregation. All specimens of the TWIP steel have the same law. Mn shows obvious negative segregation,Al and Si exhibit positive segregation,and Al has the highest degree of segregation. The elements' solute distribution coefficient K of the TWIP steel was calculated using the Thermo-Calc software. It is found that the microsegregation laws of Mn and Al in theory are opposite to those in the experiment,and the main reason is silicon content. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | Chinese |
| تدمد: | 2095-9389 |
| Relation: | https://doaj.org/toc/2095-9389 |
| DOI: | 10.13374/j.issn2095-9389.2016.07.007 |
| URL الوصول: | https://doaj.org/article/4119898c83c045cf9e148fcb7a410291 |
| رقم الانضمام: | edsdoj.4119898c83c045cf9e148fcb7a410291 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 20959389 |
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| DOI: | 10.13374/j.issn2095-9389.2016.07.007 |