|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Numerical Analysis on Columnar-to-equiaxed Transition of δ-Ferrite Dendrite in Carbon Steel Induced by Titanium Carbonitride Particles
| Title: | Numerical Analysis on Columnar-to-equiaxed Transition of δ-Ferrite Dendrite in Carbon Steel Induced by Titanium Carbonitride Particles |
| Authors: | Ohno, Munekazu Browse this author →KAKEN DB | | Matsuura, Kiyotaka Browse this author →KAKEN DB |
| Keywords: | columnar-to-equiaxed transition | | hyperperitectic steel | | titanium carbontride | | casting | | solidification | | simulation | | dendrite structure |
| Issue Date: | 15-Oct-2009 |
| Publisher: | Iron and Steel Institute of Japan |
| Journal Title: | ISIJ International |
| Volume: | 49 |
| Issue: | 10 |
| Start Page: | 1568 |
| End Page: | 1574 |
| Publisher DOI: | 10.2355/isijinternational.49.1568 |
| Abstract: | Dendrite growth simulations have been performed to analyze Columnar-to-Equiaxed Transition (CET) of δ-ferrite dendrite structure triggered by fine particles of a primary Ti(C, N) crystal. The CET position estimated by Hunt's criterion and the present simulation indicated that the existence of a large number of the Ti(C, N) particles gives rise to the CET of the dendrite structure even in the vicinity of the mold wall under the present casting condition. Furthermore, the capability of the Ti(C, N) leading to the CET was discussed in the light of the different number of Ti(C, N) particles and the different thickness of cast ingot. It was shown that a sufficient number of Ti(C, N) leads to the formation of fully equiaxed dendrite structure irrespective of the ingot thickness. |
| Rights: | 著作権は日本鉄鋼協会にある |
| Type: | article |
| URI: | http://hdl.handle.net/2115/75414 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 大野 宗一
|
