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Effects of Second Phase Particles on Migration of α/γ Interface during Isothermal α to γ Transformation
| Title: | Effects of Second Phase Particles on Migration of α/γ Interface during Isothermal α to γ Transformation |
| Authors: | Chen, Liang Browse this author | | Matsuura, Kiyotaka Browse this author →KAKEN DB | | Ohno, Munekazu Browse this author →KAKEN DB | | Sato, Daisuke Browse this author |
| Keywords: | phase transformation | | α/γ interface | | second phase particle | | pinning effect | | diffusion couple | | multi-phase field simulation |
| Issue Date: | Oct-2012 |
| Publisher: | Iron and Steel Institute of Japan |
| Journal Title: | ISIJ International |
| Volume: | 52 |
| Issue: | 10 |
| Start Page: | 1841 |
| End Page: | 1847 |
| Publisher DOI: | 10.2355/isijinternational.52.1841 |
| Abstract: | The effects of insoluble particles on migration of ferrite (α)/austenite (γ) interface during isothermal α to γ transformation at 1133 K have been studied by means of a model experiment using diffusion couple method and a multi-phase field simulation. It was found that the insoluble particles, ZrO2 or TiO2 particles, could retard the migration of α/γ interface. And the tendency that the retarding effect becomes stronger with higher volume fraction of TiO2 particle was observed. However, the retarding effect of ZrO2 on α/γ interface is not as strong as that on δ–ferrite (δ)/austenite (γ) interface during peritectic transformation. The phase field simulation indicates that this reduction of retarding effect originates from the appearance of carbon pile-up in γ phase, which is also caused by the existence of particles. In addition, it is shown that the difference between σα/p and σγ/p, the interfacial energy between matrix (α or γ) and particles, strongly affects the migration velocity of α/γ interface. |
| Rights: | 著作権は日本鉄鋼協会にある |
| Type: | article |
| URI: | http://hdl.handle.net/2115/75417 |
| 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)
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Submitter: 大野 宗一
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