Effects of Multiple Addition of Si and Mn on the Migration of α/γ Interphase Boundary

多重添加Si、Mn对α/γ相界迁移的影响

• 批准号: 19560660
• 负责人: ENOMOTO Masato
• 金额: $ 2.91万
• 依托单位: Ibaraki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19560660/
• 关键词: 鉄合金; オーステナイト; フェライト; 合金元素; 強磁場; 成長; 核生成

The effects of Si and Mn, contained in dual-phase (DP) steel and Transformation-Induced-Plasticity (TRIP) steel, on ferrite transformation and the mechanism through which these elements produce the effects were studied in a high-purity Fe-C-Si-Mn quaternary alloy by deformation of austenite prior to transformation and magnetic heat treatment (the field strength is 8 Tesla). Results were compared with calculation taking into account the co-segregation of Mn and Si caused by the interaction between Mn and Si by means of the solute-drag theory. Diffusion of Mn and Si and segregation (or accumulation) at α/γ phase boundaries both delay the transformation and are likely to produce the characteristic three stages of ferrite growth reported in the literature.

通过奥氏体变形和磁场热处理（场强为8 T），研究了高纯Fe-C-Si-Mn四元合金中双相钢和相变诱发塑性钢中Si和Mn对铁素体相变的影响及其作用机理。计算结果与溶质拖曳理论计算结果进行了比较，计算中考虑了Mn和Si之间的相互作用引起的Mn和Si的共偏聚。Mn和Si的扩散以及α/γ相界的偏析（或积累）都延迟了相变，并且可能产生文献中报道的特征性的铁素体生长的三个阶段。

项目成果

Influence of magnetic field on ferrite transformation in a Fe–C–Mn alloy

• DOI: 10.1016/j.jmmm.2009.07.072
• 发表时间: 2009-12
• 期刊: Journal of Magnetism and Magnetic Materials
• 影响因子: 2.7
• 作者: G. Zhang;M. Enomoto;N. Hosokawa;M. Kagayama;Y. Adachi

Influence of Strong Magnetic field on Ferrite Transformation in Fe-C base Alloys

强磁场对Fe-C基合金中铁素体相变的影响

• 发表时间: 2010
• 作者: M. Enomoto;G. H. Zhang;K. M. Wu
• 通讯作者: K. M. Wu

Effects of Substitutional Solute Accumulation at α/γ Boundaries on the Growth of Ferrite in Low Carbon Steels

• DOI: 10.1007/s11661-007-9139-0
• 发表时间: 2007-05
• 期刊: Metallurgical and Materials Transactions A
• 作者: H. Guo;M. Enomoto

茨城大学研究者情報総覧

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Interlamellar Spacing of Pearlite in a Near-eutectoid Fe–C Alloy Measured by Serial Sectioning

• DOI: 10.2355/isijinternational.49.921
• 发表时间: 2009-06
• 期刊: Isij International
• 影响因子: 1.8
• 作者: Guohong Zhang;M. Enomoto